3个100欧姆的电阻abc,ab并联后与c串联，电路两端电压为15伏，求并联电路中b的阻值？？ 初中物理（惯性和电路结合的一道题）
\u7269\u7406\u96be\u9898\u6709\u4e24\u4e2a\u7535\u963bR\u2460\u548cR\u2461\uff0c\u4e14R\u2460\uff1dnR\u2461\uff0c\u5e76\u8054\u540e\u63a5\u5165\u67d0\u7535\u8def\u4e2d\uff0c\u90a3\u4e48\u5e72\u8def\u4e2d\u7684\u7535\u6d41\u4e3aI\uff0cR\u2460\u548cR\u2461\u4e2d\u7684\u7535\u6d41\u5206\u522b\u4e3aI\u2460\u548cI\u2461\u4e0b\u5217\u5173\u7cfb\u4e2d\u9519\u8bef\u7684\u662f\uff1aA\uff1a 1 B\uff1a I\u2460\uff1d\uff0dI\u2461 I\uff1d\uff08n\uff0b1\uff09I\u2461 n C\uff1a 1 D\uff1a n I\u2460\uff1d \uff3f\uff3f I I\u2461\uff1d \uff0d\uff0d\uff0dI n\uff0b1 n\uff0b1
\u82e5\u628a\u4e24\u5b9a\u503c\u7535\u963bR1.R2\u4ee5\u67d0\u79cd\u65b9\u5f0f\u8fde\u63a5\u8d77\u6765\u4e0e\u7535\u6e90\u63a5\u901a\uff0cR1\u6d88\u8017\u7684\u7535\u529f\u7387\u662f9\u74e6\uff1b\u82e5\u628a\u4e24\u7535\u963b\u4ee5\u53e6\u4e00\u79cd\u65b9\u5f0f\u8fde\u63a5\u540e\uff0c\u4ecd\u4e0e\u8be5\u7535\u6e90\u63a5\u901a\uff0c\u5219R1\u6d88\u8017\u7684\u7535\u529f\u7387\u4e3a16\u74e6\u4e14\u901a\u8fc7R2\u7684\u7535\u6d41\u4e3a4A\uff0c\u90a3\u4e48\u7535\u6e90\u7535\u538b\u548cR1,R2\u7684\u963b\u503c\u5404\u662f\u591a\u5927\uff1f\uff08\u8bf7\u5199\u660e\u8ba1\u7b97\u8fc7\u7a0b\uff09
1\uff0e\u4e00\u6bb5\u94dc\u7ebf\u7684\u7535\u963b\u4e3aR\uff0c\u4e24\u7aef\u7535\u538b\u4e3aU\uff0c\u901a\u8fc7\u7535\u6d41\u5f3a\u5ea6\u4e3aI\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f\u3014 \u3015
A\uff0eR\u7531\u94dc\u7ebf\u7684\u957f\u5ea6\u548c\u6a2a\u622a\u9762\u79ef\u51b3\u5b9a
B\uff0eR\u7684\u5927\u5c0f\u4e0eU\u6709\u5173
C\uff0e\u94dc\u7ebf\u7684\u7535\u963b\u5bf9\u7535\u6d41\u901a\u8fc7\u6709\u963b\u788d\u4f5c\u7528
D\uff0eR\u7684\u5927\u5c0f\u4e0eI\u65e0\u5173
2\uff0e\u4e24\u4e2a\u7535\u963b\u503c\u5b8c\u5168\u76f8\u7b49\u7684\u7535\u963b\uff0c\u82e5\u5e76\u8054\u540e\u7684\u603b\u7535\u963b\u662f10\u6b27\u59c6\uff0c\u5219\u5c06\u5b83\u4eec\u4e32\u8054\u7684\u603b\u7535\u963b\u662f\u3014 \u3015
A\uff0e5\u6b27\u59c6 B\uff0e10\u6b27\u59c6
C\uff0e20\u6b27\u59c6 D\uff0e40\u6b27\u59c6
3\uff0e\u4e00\u6761\u5bfc\u7ebf\u7684\u7535\u963b\u662fR\uff0c\u628a\u5b83\u5bf9\u6298\u5206\u6210\u7b49\u957f\u7684\u4e24\u6bb5\u540e\uff0c\u518d\u628a\u8fd9\u4e24\u6bb5\u5e76\u8054\u8d77\u6765\u4f7f\u7528\uff0c\u8fd9\u65f6\u7535\u963b \u662f\u3014\u3015
A. R/4 B.R/2 C. R/2
4\uff0e4\u4e2a\u7535\u963b\uff0c\u7535\u963b\u503c\u90fd\u662fR\uff0c\u628a\u5b83\u4eec\u5e76\u8054\u8d77\u6765\uff0c\u603b\u7535\u963b\u662f\u3014 \u3015
A\uff0e4R B\uff0eR/4 C\uff0e4/R D\uff0e2R
5\uff0e\u4e24\u6761\u957f\u5ea6\u76f8\u7b49\u3001\u622a\u9762\u79ef\u4e0d\u7b49\u7684\u540c\u79cd\u6750\u6599\u5236\u6210\u7684\u7535\u963b\u4e1d\uff0c\u4e32\u8054\u5728\u7535\u8def\u4e2d\uff0c\u5219\u7c97\u7535\u963b\u4e1d\u3014 \u3015
A\uff0e\u7535\u6d41\u5f3a\u5ea6\u8f83\u5927 B\uff0e\u7535\u6d41\u5f3a\u5ea6\u8f83\u5c0f
C\uff0e\u7535\u538b\u8f83\u5927 D\uff0e\u7535\u538b\u8f83\u5c0f
6\uff0e\u4e0b\u9762\u56db\u5bf9\u5e76\u8054\u7535\u963b\uff0c\u603b\u7535\u963b\u6700\u5c0f\u7684\u662f \u3014 \u3015
A\uff0e\u4e24\u4e2a4\u03a9 B\uff0e\u4e00\u4e2a4\u03a9\uff0c\u4e00\u4e2a6\u03a9
C\uff0e\u4e00\u4e2a1\u03a9\uff0c\u4e00\u4e2a8\u03a9 D\uff0e\u4e00\u4e2a2\u03a9\uff0c\u4e00\u4e2a7\u03a9
7\uff0e\u4eca\u6709\u4e09\u4e2a\u7535\u963b\uff0c\u5b83\u4eec\u7684\u7535\u963b\u503c\u5206\u522b\u662fa\u6b27\u3001b\u6b27\u3001c\u6b27\uff0c\u5176\u4e2da>b>c\uff0c\u5f53\u628a\u5b83\u4eec\u5e76\u8054\u76f8\u63a5\uff0c\u603b\u7535\u963b\u4e3aR\uff0c\u5b83\u4eec\u7684\u5927\u5c0f\u5173\u7cfb\uff0c\u4e0b\u5217\u54ea\u4e2a\u5224\u65ad\u662f\u6b63\u786e\u7684\u3014 \u3015
A\uff0ec<R<b B\uff0eb<R<a
C\uff0eR\u53ef\u80fd\u7b49\u4e8eb D\uff0eR<c
8\uff0e\u4e24\u4e2a\u7535\u963b\u503c\u76f8\u7b49\u7684\u7535\u963b\uff0c\u6bcf\u4e2a\u7535\u963b\u7684\u7535\u963b\u503c\u4e3aR\u3002\u73b0\u5c06\u5176\u4e2d\u4e00\u4e2a\u7535\u963b\u589e\u5927\uff0c\u53e6\u4e00\u4e2a\u7535\u963b\u51cf\u5c0f\uff0c\u5219\u5e76\u8054\u540e\u7684\u603b\u7535\u963b\u5c06\u3014 \u3015
A\uff0e\u5927\u4e8eR B\uff0e\u5c0f\u4e8eR
C\uff0e\u4ecd\u7b49\u4e8eR D\uff0e\u65e0\u6cd5\u5224\u5b9a
9\uff0e\u6709\u4e00\u6761\u7535\u963b\u7ebf\uff0c\u5728\u5176\u4e24\u7aef\u52a01\u4f0f\u7279\u7535\u538b\u65f6\uff0c\u6d4b\u5f97\u7535\u963b\u503c0.5\u6b27\u59c6\uff0c\u5982\u679c\u5728\u5176\u4e24\u7aef\u52a010\u4f0f\u7279\u7535\u538b\u65f6\uff0c\u5176\u7535\u963b\u503c\u5e94\u4e3a\u3014 \u3015
A\uff0e0.5\u6b27\u59c6 B\uff0e5\u6b27\u59c6
C\uff0e0.05\u6b27\u59c6 D\uff0e20\u6b27\u59c6
10\uff0e\u7535\u963bR1\u7684\u963b\u503c\u6bd4\u7535\u963bR2\u5c0f\uff0c\u628a\u5b83\u4eec\u5e76\u8054\u540e\uff0c\u603b\u7535\u963b[ \u3015
A\uff0e\u65e2\u5c0f\u4e8eR1\u53c8\u5c0f\u4e8eR2 B\uff0e\u65e2\u5927\u4e8eR1\u53c8\u5927\u4e8eR2
C\uff0e\u5c0f\u4e8eR2\u800c\u5927\u4e8eR1 D\uff0e\u7b49\u4e8eR1\u4e0eR2\u4e4b\u548c
12\uff0e\u4fee\u7406\u7535\u5668\u9700\u8981\u4e00\u53ea150\u6b27\u59c6\u7684\u7535\u963b\uff0c\u4f46\u53ea\u6709\u7535\u963b\u503c\u5206\u522b\u4e3a100\u6b27\u59c6\u3001200\u6b27\u59c6\u3001600\u6b27\u59c6\u7684\u7535\u963b\u5404\u4e00\u53ea\uff0c\u53ef\u4ee3\u7528\u7684\u529e\u6cd5\u662f\u3014\u3015
A\uff0e\u628a200\u6b27\u59c6\u7684\u7535\u963b\u4e0e600\u6b27\u59c6\u7684\u7535\u963b\u4e32\u8054\u8d77\u6765
B\uff0e\u628a100\u6b27\u59c6\u7684\u7535\u963b\u4e0e200\u6b27\u59c6\u7684\u7535\u963b\u4e32\u8054\u8d77\u6765
C\uff0e\u628a100\u6b27\u59c6\u7684\u7535\u963b\u4e0e200\u6b27\u59c6\u7684\u7535\u963b\u5e76\u8054\u8d77\u6765
D\uff0e\u628a200\u6b27\u59c6\u7684\u7535\u963b\u4e0e600\u6b27\u59c6\u7684\u7535\u963b\u5e76\u8054\u8d77\u6765
13\uff0e\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u662f4\u4f0f\u7279\uff0c\u901a\u8fc7\u7684\u7535\u6d41\u5f3a\u5ea6\u662f0.8\u5b89\u57f9\uff0c\u5982\u679c\u4f7f\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u589e\u52a0\u52306\u4f0f\u7279\uff0c\u90a3\u4e48\u5bfc\u4f53\u7684\u7535\u963b\u548c\u7535\u6d41\u5f3a\u5ea6\u5206\u522b\u662f\u3014\u3015
A\uff0e5\u6b27\u59c6\uff0c1.2\u5b89\u57f9 B\uff0e5\u6b27\u59c6\uff0c2\u5b89\u57f9
C\uff0e7.5\u6b27\u59c6\uff0c0.8\u5b89\u57f9 D\uff0e12.5\u6b27\u59c6\uff0c0.8\u5b89\u57f9
1\u3001\u6709\u4e00\u4e2a\u963b\u503c\u4e3a10\u6b27\u59c6\u7684\u7535\u963bR1\uff0c\u5141\u8bb8\u901a\u8fc7\u7684\u6700\u5927\u7535\u6d41\u5f3a\u5ea6\u4e3a100\u6beb\u5b89, \u82e5\u8981\u5c06\u6b64\u7535\u963b\u63a5\u51651.1\u5b89\u57f9\u7684\u7535\u8def\u4e2d\u4f7f\u7528, \u5e94\u8be5\u600e\u4e48
\u529e? (\u753b\u51fa\u7535\u8def\u56fe, \u5e76\u7b97\u51fa\u6570\u503c)
2\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d, \u7535\u6e90\u7535\u538b\u4e3a6\u4f0f, \u7535\u963bR\u7684\u963b\u503c\u4e3a10\u6b27,\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6700\u5927\u963b\u503c\u4e3a50\u6b27, \u5f53\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u7531A\u6ed1\u5230B\u7aef\u65f6,
\u7535\u538b\u8868\u7684\u793a\u6570\u7684\u53d8\u5316\u8303\u56f4\u662f\u591a\u5c11?
3\u3001\u6709\u53ea200\u6b27\u7684\u7535\u963b,\u5141\u8bb8\u901a\u8fc7\u7684\u6700\u5927\u7684\u7535\u6d41\u5f3a\u5ea6\u662f0.2\u5b89,\u63a5\u5728110\u4f0f\u7684\u7535\u8def\u4e2d, \u80fd\u6b63\u5e38\u5de5\u4f5c\u5417? \u4e3a\u4f7f\u5176\u6b63\u5e38\u5de5\u4f5c, \u5e94\u5728\u7535\u8def
\u4e2d\u5982\u4f55\u63a5\u5165\u4e00\u4e2a\u963b\u503c\u591a\u5927\u7684\u7535\u963b?
4\u3001\u73b0\u6709\u4e24\u7535\u963b\u4e32\u8054\u5728\u7535\u8def\u4e2d, \u5df2\u77e5R1:R2=3:2, \u5982\u679c\u7535\u8def\u4e24\u7aef\u7684\u7535\u538b\u4e3a15\u4f0f, \u90a3\u4e48, R1\u4e24\u7aef\u7684\u7535\u538b\u662f\u591a\u5c11?
5\u3001\u5728\u56fe\u6240\u793a\u4e2d, \u7535\u6e90\u7535\u538bU=6\u4f0f, R1=R2=15\u6b27, \u5f53\u6ed1\u7247P\u7f6e\u4e8e\u53d8\u963b\u5668\u4e24\u7aefa\u3001b\u65f6, \u5b89\u57f9\u8868\u548c\u4f0f\u7279\u8868\u7684\u793a\u6570\u5404\u662f\u591a\u5c11?
6\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d, R1=6\u6b27, R2=8\u6b27, \u7535\u6e90\u7535\u538b\u4e3a12\u4f0f, \u6c42:(1)\u5f53K2\u65ad\u5f00, K1\u3001K3\u95ed\u5408\u65f6, \u901a\u8fc7R1\u3001R2\u7684\u7535\u6d41\u5f3a\u5ea6\u5404\u4e3a
\u591a\u5927? (2)\u5f53K2\u95ed\u5408, K1\u3001K3\u65ad\u5f00\u65f6, \u7535\u963bR1\u3001R2\u4e24\u7aef\u7684\u7535\u538b\u5404\u662f\u591a\u5927?
7\u3001\u6709\u4e00\u7528\u7535\u5668\u7684\u7535\u963b\u4e3a20\u6b27\u59c6, \u6b63\u5e38\u5de5\u4f5c\u65f6, \u901a\u8fc7\u5b83\u7684\u7535\u6d41\u5f3a\u5ea6\u4e3a0.5\u5b89\u57f9\u3002 (1)\u628a\u8fd9\u4e2a\u7528\u7535\u5668\u63a5\u523012\u4f0f\u7684\u7535\u6e90\u4e0a\u65f6, \u901a\u8fc7
\u5b83\u7684\u7535\u6d41\u5f3a\u5ea6\u591a\u5927? \u8bd5\u5206\u6790\u8fd9\u65f6\u7528\u7535\u5668\u80fd\u5426\u6b63\u5e38\u5de5\u4f5c? (2)\u5982\u679c\u63a5\u572812\u4f0f\u7279\u7684\u7535\u6e90\u4e0a, \u8981\u4f7f\u5b83\u6b63\u5e38\u5de5\u4f5c\u9700\u8981\u4e32\u8054\u4e00\u4e2a\u591a\u5927\u7684
\u7535\u963b?
8\u3001\u5982\u56fe\u6240\u793a, R1=30\u6b27\u59c6, \u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u5728\u4e2d\u70b9\u65f6, \u4f0f\u7279\u8868\u7684\u793a\u6570\u4e3a3\u4f0f, \u6ed1\u7247P\u5728b\u7aef\u65f6, \u4f0f\u7279\u8868\u7684\u793a\u6570\u4e3a4.5\u4f0f,
\u6c42\u7535\u6e90\u7535\u538b\u548c\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u963b\u503c?
9\u3001\u5982\u56fe\u6240\u793a, \u5df2\u77e5\u7535\u6e90\u7535\u538b\u662f6\u4f0f, R1=10\u6b27, A1\u793a\u6570\u662f0.5\u5b89, R2=20\u6b27, \u6c42A2\u7684\u793a\u6570?
10\u3001\u5982\u56fe\u6240\u793a, R1\uff1d40\u6b27\u7684\u7535\u963b\u4e0eR2\u5e76\u8054\u5728\u7535\u6e90\u4e0a\uff0c\u65ad\u5f00\u5f00\u5173S\uff0c\u7535\u6d41\u8868\u793a\u6570\u4e3a\u539f\u6765\u76841/3\uff0c\u6c42R2\u7684\u503c\uff1f
\u4e0d\u591f\u4e0b\u9762\u7ee7\u7eed
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12\u3001\u6709\u4e00\u79cd\u5bb6\u5ead\u7528\u5c0f\u578b\u5f69\u706f\u4e32\uff0c\u753124\u53ea\u5c0f\u706f\u6ce1\u4e32\u8054\u800c\u63a5\u5728220\u4f0f\u7684\u7535\u6e90L\u3002\u4f7f\u7528\u4e2d\u7531\u4e8e\u67d0\u4e00\u53ea\u5c0f\u706f\u6ce1\u88ab\u70e7\u574f\u800c\u4f7f\u5168\u90e8\u5c0f\u706f\u6ce1\u90fd\u7184\u706d\u4e86\uff0c\u56e0\u4e3a\u5f69\u706f\u4e0a\u6d82\u6709\u989c\u8272\uff0c\u81f4\u4f7f\u65e0\u6cd5\u770b\u6e05\u662f\u54ea\u4e00\u53ea\u5c0f\u706f\u6ce1\u7684\u706f\u4e1d\u88ab\u70e7\u65ad\u3002\u73b0\u7ed9\u4f60\u4e00\u53ea\u7535\u538b\u8868\uff0c\u4f60\u5982\u4f55\u67e5\u627e\u6545\u969c\u6240\u5728\uff1f\u82e5\u624b\u5934\u53ea\u6709\u4e00\u53ea\u76f8\u540c\u89c4\u683c\u7684\u5c0f\u706f\u6ce1\uff0c\u53c8\u5e94\u5982\u4f55\u67e5\u627e\u6545\u969c\u6240\u5728\uff1f
13 9\u6240\u793a\u7535\u8def\uff0c\u5f53\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u52a8\u5934P\u5411\u53f3\u79fb\u52a8\u65f6\uff0c\u7535\u538b\u8868\u7684\u793a\u6570______\u7535\u6d41\u8868\u7684\u793a\u6570_____ \u3002
14\uff0e\u5982\u56fe10\u6240\u793a\u7684\u7535\u8def\uff0c\u7535\u6e90\u7535\u538b\u4e0d\u53d8\uff0cU=9\u4f0f\u3001\u6ed1\u52a8\u53d8\u963b\u5668R1\u603b\u963b\u503c\u4e3a10\u6b27\uff0c\u5b9a\u503c\u7535\u963bR2\u4e3a20\u6b27\u3002\u5f53\u6ed1\u52a8\u53d8\u963b\u5668\u6ed1\u7247P\u79fb\u52a8\u65f6\uff0c\u7535\u538b\u8868\u53ef\u83b7\u5f97____\u4f0f\u81f3____\u4f0f\u7684\u53d8\u5316\u8303\u56f4\u3002\u5b9a\u503c\u7535\u963b\u4e0a\u6700\u5927\u7535\u6d41\u4e0e\u6700\u5c0f\u7535\u6d41\u4e4b\u6bd4\u4e3a______\u3002
15\u3001 R1=40\u6b27\uff0cR2=60\u6b27\uff0c\u5e76\u8054\u63a5\u5728\u7535\u538b\u4e3aU\u7684\u7535\u6e90\u4e0a\uff0c\u5219\u901a\u8fc7R1\u3001R2\u7684\u7535\u6d41\u4e4b\u6bd4\u662f_____ R1\u3001R2\u5e76\u8054\u540e\u518d\u4e32\u8054\u4e00\u4e2a\u7535\u963b R3\uff0c\u628a\u8fd9\u4e00\u7535\u8def\u4ecd\u63a5\u5728\u7535\u538b\u4e3a U\u7684\u7535\u6e90\u4e0a\uff0c\u5219\u901a\u8fc7R1\u3001R2\u3001\u3001R3\u7684\u7535\u6d41\u4e4b\u6bd4\u662f_______\u3002
16\uff0e\u5982\u56fe11\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u7535\u538b\u4e0d\u53d8\uff0c\u5f53\u7535\u963bR=1\u6b27\uff0cI1\uff1aI2=______\uff1b\u5f53\u7535\u963b R=3\u6b27\u65f6\uff0cI1\uff1aI2=______\u3002
17\uff0e\u5728\u5982\u56fe12\u6240\u793a\u7535\u8def\u4e2d\uff0cR1=20\u6b27\uff0cR2=18\u6b27\uff0c\u7535\u6e90\u7535\u538bU=5\u4f0f\u5e76\u4fdd\u6301\u4e0d\u53d8\u3002\u4e3a\u4e86\u4f7fR1\u4e24\u7aef\u7684\u7535\u538b\u53ea\u80fd\u57280\u4e0e2\u4f0f\u4e4b\u95f4\u4efb\u610f\u6539\u53d8\uff0cR3\u7684\u6700\u5927\u7535\u963b\u503c\u5e94\u662f______\u3002
18\uff0e\u5982\u56fe13\u6240\u793a\u7535\u8defUab= 4.4\u4f0f\u5e76\u4fdd\u6301\u4e0d\u53d8\uff0cR1= R2= R3= R4=0.5\u6b27\uff0cRL1= RL2=2\u6b27\uff0c\u5219\u7535\u706f\u6ce1L1\u4e24\u7aef\u7535\u538bU1=______ \uff0c\u7535\u706f\u6ce1L2\u4e24\u7aef\u7535\u538bU2=______
19\uff0e\u4e00\u6bb5\u5747\u5300\u7684\u76f4\u7535\u963b\u4e1dBD\u957f\u5ea6\u4e3aL,BD\u4e24\u7aef\u63a5\u5728\u7535\u6e90\u4e24\u6781\u4e0a\uff0c\u901a\u8fc7D\u70b9\u7684\u7535\u6d41\u4e3aI\u3002\u5c06B\u7aef\u5728A\u70b9\u6298\u56de\uff0c\u4f7fB\u70b9\u4e0eC\u70b9\u710a\u63a5\u5728\u4e00\u8d77\uff0c\u5982\u56fe14\u6240\u793a\u3002\u5c06 AD\u4e24\u7aef\u63a5\u5728\u7535\u6e90\u7684\u4e24\u6781\u4e0a\uff08\u7535\u538b\u4e0d\u53d8\uff09\u3002AB\u662f\u539f\u957fL\u7684______\u500d\uff0c\u624d\u53ef\u80fd\u4f7f\u901a\u8fc7D\u70b9\u7684\u7535\u6d41\u4e3a1.5I\u3002
20\uff0e\u56fe15\u4e3a\u67d0\u7535\u8def\u4e2d\u7684\u4e00\u90e8\u5206\u7535\u8def\uff0c\u7535\u963bR1\u548cR2\u6807\u660e\u7684\u963b\u503c\u5206\u522b\u4e3a30\u6b27\u548c60\u6b27,R3\u4e0a\u7684\u6807\u5fd7\u5df2\u6a21\u7cca\u4e0d\u6e05\u3002\u4e3a\u4e86\u8fa8\u660eR3\u7684\u963b\u503c\uff0c\u5206\u522b\u7528\u7535\u6d41\u8868\u548c\u7535\u538b\u8868\u63a5A\u3001C\u95f4\u548c A\uff0e\u3001D\u4e24\u7aef\uff0c\u8868\u4e0a\u7684\u793a\u6570\u5404\u81ea\u4e3a50\u6beb\u5b89\u548c2.7\u4f0f\u3002\u7531\u6b64\u53ef\u77e5\uff0cR3=____\u6b27\u3002
21\uff0e\u5982\u56fe16\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u5df2\u77e5 AB\u4e24\u7aef\u6240\u63a5\u7684\u7535\u6e90\u7535\u538b\u4e3a7.5\u4f0f\uff0cR1=2\u6b27\uff0cR3=5\u6b27\uff0c\u7535\u538b\u8868U1\u7684\u793a\u6570\u4e3a2.5\u4f0f\uff0cU1\u7684\u793a\u6570\u4e3a4.0\u4f0f\u3002\u5219R2\u5e94\u7b49\u4e8e________\u3001R4\u5e94\u7b49\u4e8e_________\u3002
22\uff0e\u56fe17\u6240\u793a\u7535\u8def\uff0cAB\u95f4\u7684\u7535\u538b\u4fdd\u6301\u4e0d\u53d8\uff0cR1=R2=R3\uff0c\u5f53\u5f00\u5173S\u65ad\u5f00\u65f6\uff0c\u7535\u538b\u8868\u7684\u8bfb\u6570\u4e3aU\uff1b\u5f53S\u95ed\u5408\u65f6\uff0c\u7535\u538b\u8868\u7684\u8bfb\u6570\u4e3a________U\u3002
23\uff0e\u5982\u56fe18\u6240\u793a\u7535\u8def\uff0c\u7535\u6e90\u7535\u538b\u4e00\u5b9a\uff0cR1=10\u6b27\uff0cR2=20\u6b27\uff0cR3=3O\u6b27\u3002\u5f53\u5f00\u5173S1 S2\u90fd\u65ad\u5f00\u548c\u90fd\u95ed\u5408\u65f6\uff0c\u7535\u6d41\u8868\u7684\u793a\u6570\u4e4b\u6bd4\u4e3a1\uff1a2\uff0c\u5219R\u7684\u963b\u503c\u662f__________\u6b27\u3002
24\uff0e\u5982\u56fe19\u6240\u793a\uff0c\u5df2\u77e5\u76d2\u5b50\u91cc\u9762\u6709\u4e00\u4e2a\u7531\u7535\u538b\u4e3a5\u4f0f\u7684\u7535\u6e90\u548c\u963b\u503c\u76f8\u540c\u7684\u7535\u963b\u7ec4\u6210\u7535\u8def\uff0c\u76d2\u5916\u6709\u56db\u4e2a\u63a5\u7ebf\u67f1\uff0c\u7528\u7535\u538b\u8868\u6d4b\u91cf\u7535\u538b\uff0cU12=5\u4f0f\uff0cU34=3\u4f0f\uff0cU13=2\u4f0f\uff0cU42=0\uff0c\u753b\u51fa\u91cc\u9762\u7684\u7535\u8def\u3002
25\uff0e\u5728\u7535\u5b66\u5b9e\u9a8c\u4e2d\uff0c\u9047\u5230\u65ad\u8def\u65f6\uff0c\u5e38\u5e38\u7528\u7535\u538b\u8868\u6765\u68c0\u6d4b\u3002\u67d0\u540c\u5b66\u8fde\u63a5\u5982\u56fe20\u6240\u793a\u7684\u7535\u8def\uff0c\u7535\u6e90\u5b8c\u597d\u3002\u5f00\u5173\u95ed\u5408\u540e\uff0c\u706f\u4e0d\u4eae\uff0c\u7535\u6d41\u8868\u65e0\u793a\u6570\uff0c\u8fd9\u65f6\u7528\u7535\u538b\u8868\u6d4b\u5f97b\u3001c\u4e24\u70b9\u95f4\u548ca d\u5728\u4e24\u70b9\u95f4\u7684\u7535\u538b\u5747\u4e3a\u96f6\uff0c\u8fd9\u8bf4\u660e\u53ef\u80fd\u662f\uff08\uff09\u3002
A \u7535\u6e90\u63a5\u7ebf\u67f1\u63a5\u89e6\u4e0d\u826f\uff1b B\u7535\u706f\u5f00\u5173\u7684\u89e6\u7247\u6216\u63a5\u7ebf\u67f1\u63a5\u89e6\u4e0d\u826f\uff1b
C \u7535\u6d41\u8868\u63a5\u7ebf\u67f1\u63a5\u89e6\u4e0d\u826f\uff1b D\u706f\u6ce1\u706f\u4e1d\u65ad\u4e86\u6216\u63a5\u89e6\u4e0d\u826f
26\uff0e\u5982\u56fe21\u6240\u793a\uff0c\u7535\u6e90\u7535\u538b\u4e0d\u53d8\u3002\u5f53\u6ed1\u52a8\u53d8\u963b\u5668\u6ed1\u7247P\u5411B\u7aef\u6ed1\u52a8\u65f6\uff0c\u4e0b\u5217\u53d9\u8ff0\u6b63\u786e\u7684\u662f\uff08\uff09\u3002
A A1\u51cf\u5c0f\uff0cA2\u589e\u5927\uff0cV1\u4e0d\u53d8,V2\u51cf\u5c0f\uff1b B A1\u589e\u5927,A2\u51cf\u5c0f\uff0cV1\u51cf\u5c0f,V2 \u4e0d\u53d8\uff1b
C A1\u4e0d\u53d8, A2 \u4e0d\u53d8, V1 \u4e0d\u53d8\uff0cV2\u589e\u5927\uff1b D A1\u589e\u5927,A2\u589e\u5927\uff0cV1\u4e0d\u53d8,V2\u589e\u5927\u3002
27•\u56fe22\u6240\u793a\u7684\u56db\u4e2a\u7535\u8def\u4e2d\uff0c\u82e5\u7535\u538b\u8868\u7684\u8bfb\u6570\u4fdd\u6301\u4e0d\u53d8\u3002\u5f53\u5f00\u5173S\u95ed\u5408\u65f6\uff0c\u54ea\u4e00\u4e2a\u7535\u8def\u4e2d\u7684\u7535\u6d41\u8868\u8bfb\u6570\u5c06\u4f1a\u53d8\u5927
28\uff0e\u5982\u56fe23\u6240\u793a\u7535\u8def\uff0c\u7535\u6e90\u7535\u538b\u4fdd\u6301\u4e0d\u53d8\uff0c\u5f00\u5173S\u95ed\u5408\u540e\uff0c\u7535\u6d41\u8868A1\u3001A2\u7684\u793a\u6570\u4e4b\u6bd4\u4e3a8\uff1a5\u3002\u82e5\u5c06\u4e00\u4e2a\u7535\u963bR3\u4e95\u8054\u5728A\u3001B\u4e24\u70b9\u95f4\uff0c\u5f00\u5173S\u95ed\u5408\u540e\u7535\u6d41\u8868A1\u3001A2\u7684\u793a\u6570\u4e4b\u6bd4\u4e3a3\uff1a2\u3002\u6bd4\u8f83R1\u548cR3\u7684\u5927\u5c0f\uff1a
A R1\uff1eR3\uff1b B R1\uff1cR3\uff1b C R1=R3\uff1b D\u6761\u4ef6\u4e0d\u8db3\uff0c\u65e0\u6cd5\u5224\u65ad\u3002
29\uff0e\u5982\u56fe24\u6240\u793a\u7535\u8def\u4e2dL\u662f\u8ddf R2\u5e76\u8054\u7684\u4e00\u6761\u5bfc\u7ebf\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f\uff08\uff09\u3002
A \u901a\u8fc7 R1\u3001R2\u7684\u7535\u6d41I\u76f8\u7b49\uff0cI=U/\uff08R1+ R2\uff09
B R1\u4e0a\u7684\u7535\u538bU1=I R1\uff1b R2\u4e0a\u7684\u7535\u538bU2=I R2\uff0c\u5bfc\u7ebf\u4eba\u4e2d\u7684\u7535\u6d41\u4e3a\u96f6\uff1b
C R1\u4e0a\u7684\u7535\u538bU1=U\uff0cR2\u4e0a\u7684\u7535\u538b\u4e3a\u96f6\uff1b
D R1\u4e2d\u7684\u7535\u6d41 I1=U/ R1\uff0c\u5bfc\u7ebf L\u4e2d\u7684\u7535\u6d41\u7b49\u4e8e I1\uff0cR2\u4e2d\u7684\u7535\u6d41\u4e3a\u96f6\uff1b
30\uff0e\u67d0\u7cbe\u5bc6\u7535\u5b50\u4eea\u5668\u4e2d\u4e3a\u4e86\u4fbf\u4e8e\u8c03\u8282\u7535\u8def\u4e2d\u7684\u7535\u6d41\uff0c\u5176\u8c03\u8282\u90e8\u5206\u4f7f\u7528\u4e86\u4e24\u4e2a\u6ed1\u52a8\u53d8\u963b\u5982\u56fe25\u6240\u793a\uff0e\u5df2\u77e5\u8fd9\u4e24\u4e2a\u6ed1\u52a8\u53d8\u963b\u5668\u662f\u5206\u522b\u7528\u4e0d\u540c\u7684\u7535\u963b\u4e1d\u7ed5\u5728\u76f8\u540c\u7684\u7edd\u7f18\u74f7\u7ba1\u4e0a\u5236\u6210\u7684\uff0c\u5176\u4e2dRl\uff1b\u7684\u603b\u7535\u963b\u662f200\u03a9\uff0cR2\u7684\u603b\u7535\u963b\u662f5000\u03a9\uff0e\u5f00\u59cb\u65f6\u4e24\u53d8\u963b\u5668\u90fd\u5904\u4e8e\u6700\u5927\u963b\u503c\uff0e\u4e0b\u9762\u7684\u51e0\u79cd\u65b9\u6cd5\u80fd\u591f\u65e2\u5feb\u53c8\u51c6\u786e\u5730\u4f7f\u7535\u6d41\u8868\u6307\u9488\u6307\u5230\u8981\u6c42\u4f4d\u7f6e\u7684\u662f\uff08\uff09
A\uff0e\u5148\u8c03\u8282Rl\uff0c\u4f7f\u7535\u6d41\u8868\u6307\u9488\u6307\u5230\u8981\u6c42\u4f4d\u7f6e\u9644\u8fd1\uff0c\u518d\u8c03\u8282R2
B\uff0e\u5148\u8c03\u8282R2\uff0c\u4f7f\u7535\u6d41\u8868\u6307\u9488\u6307\u5230\u8981\u6c42\u4f4d\u7f6e\u9644\u8fd1\uff0c\u518d\u8c03\u8282Rl
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2\u3001\u989d\u5b9a\u529f\u7387\uff1a
\u7528\u7535\u5668\u5728\u989d\u5b9a\u7535\u538b\u4e0b\u5de5\u4f5c\u65f6\uff0c\u5c31\u662f\u7528\u7535\u5668\u4e0a\u6807\u7740\u7684\u529f\u7387\u503c\u3002
3\u3001\u5b9e\u9645\u529f\u7387\uff1a
\u7528\u7535\u5668\u5728\u5404\u79cd\u7535\u538b\u4e0b\u5de5\u4f5c\u65f6\uff0c\u5b9e\u9645\u6d88\u8017\u7684\u529f\u7387\u90fd\u53eb\u5b9e\u9645\u529f\u7387\u3002
\u516d\u3001\u7126\u8033\u5b9a\u5f8b\uff1a
\u7535\u6d41\u901a\u8fc7\u5bfc\u4f53\u4ea7\u751f\u7684\u70ed\u91cf\u8ddf\u7535\u6d41\u7684\u5e73\u65b9\u6210\u6b63\u6bd4\uff0c\u8ddf\u5bfc\u4f53\u7684\u7535\u963b\u6210\u6b63\u6bd4\uff0c\u8ddf\u901a\u7535\u65f6\u95f4\u6210\u6b63\u6bd4\uff0c\u5199\u6210\u516c\u5f0f\uff1aQ=I2Rt
\u7535\u70ed\u5668\uff1a
\u5229\u7528\u7535\u6765\u52a0\u70ed\u7684\u8bbe\u5907\u3002\u662f\u5229\u7528\u7535\u6d41\u70ed\u6548\u5e94\u6765\u5de5\u4f5c\u7684\u3002
\u4e3b\u8981\u7ec4\u6210\u90e8\u4ef6\uff1a
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\u7535\u529f\u4e0e\u7535\u70ed\u7684\u5173\u7cfb\uff1a
\u4e03\u3001\u751f\u6d3b\u7528\u7535
1\u3001\u7535\u8def\u7ec4\u6210\uff1a
\u4f4e\u538b\u8fdb\u6237\u7ebf\uff0c\u7535\u80fd\u8868\uff0c\u603b\u5f00\u5173\u3001\u4fdd\u9669\u4e1d\uff0c\u53ca\u5404\u652f\u8def\u5f00\u5173\u63a7\u5236\u7684\u7528\u7535\u5668\u3002
2\u3001\u5bb6\u5ead\u7535\u8def\u7684\u7535\u538b\u662f220v\uff0c\u4e24\u6839\u8fdb\u6237\u7ebf\uff1a
\u4e00\u6839\u53eb\u706b\u7ebf\uff0c\u4e00\u6839\u53eb\u96f6\u7ebf\uff0c\u706b\u7ebf\u4e0e\u5730\u95f4\u6709200v\u7535\u538b\u3002
3\u3001\u8fa8\u522b\u706b\u7ebf\u3001\u96f6\u7ebf\u7528\u6d4b\u7535\u7b14\u3002
\u4f7f\u7528\u65f6\u7b14\u5c16\u4e0e\u7535\u7ebf\u63a5\u89e6\u3002\u624b\u63a5\u89e6\u7b14\u5c3e\u91d1\u5c5e\u4f53\uff0c\u5982\u679c\u6c16\u7ba1\u53d1\u5149\uff0c\u8868\u660e\u63a5\u89e6\u7684\u662f\u706b\u7ebf\u3002
4\u3001\u5bb6\u5ead\u7535\u8def\u7535\u6d41\u8fc7\u5927\u7684\u539f\u56e0\uff1a
5\u3001\u5b89\u5168\u7528\u7535\u539f\u5219\uff1a
6\u3001\u6b63\u786e\u9009\u62e9\u4fdd\u9669\u4e1d\uff1a
\u4f7f\u4fdd\u9669\u4e1d\u7684\u989d\u5b9a\u7535\u6d41\u7b49\u4e8e\u6216\u7a0d\u5927\u4e8e\u7535\u8def\u4e2d\u7684\u6700\u5927\u6b63\u5e38\u5de5\u4f5c\u7535\u6d41\u3002
\u7535\u5b66\u516c\u5f0f
1\u3001 \u63a8\u51fa Q=It
2\u3001 \u5f97\u51fa U=IR
3\u3001W=UIt \u7ed3\u5408\u6b27\u59c6\u5b9a\u5f8b\u53ca\u7535\u6d41\u7684\u5b9a\u4e49\u5f0f\u5f97\u51fa
4\u3001 \u5f97\u51fa W=Pt
5\u3001P=UI \u7ed3\u5408\u6b27\u59c6\u5b9a\u5f8b\u53ef\u5f97\u51fa P=I2R
6\u3001Q=I2Rt
7\u3001Q=W=Pt\uff08\u9002\u7528\u7535\u70ed\u5668\u6216\u7eaf\u7535\u963b\u7535\u8def\uff09
\u7535\u8def\u89c4\u5f8b
\u4e32\u8054\u7535\u8def \u5e76\u8054\u7535\u8def
\u7535 \u6d41 I=I1=I2=I3 I=I1+I2+I3
\u7535 \u538b U=U1+U2+U3 U=U1=U2=U3
\u7535 \u963b R=R1+R2+R3
\u7535 \u529f W=W1+W2+W3 W=W1+W2+W3
\u7535\u529f\u7387 P=P1+P2+P3 P=P1+P2+P3
\u7535 \u70ed Q=Q1+Q2+Q3 Q=Q1+Q2+Q3
\u6bd4\u503c\u5173\u7cfb
\u7535\u5b66\u6d4b\u8bd5\u9898(\u4e00)
\u4e00\u3001\u9009\u62e9
1\u3001\u4e0b\u5217\u5404\u7ec4\u6750\u6599\u4e2d\uff0c\u90fd\u5c5e\u4e8e\u7edd\u7f18\u4f53\u7684\u4e00\u7ec4\uff08 \uff09
A\u3001\u5851\u6599\u3001\u78b3\u68d2
B\u3001\u74f7\u3001\u7a7a\u6c14
C\u3001\u7a00\u786b\u9178\u3001\u68c9\u82b1
D\u3001\u73bb\u7483\u3001\u94a8\u4e1d
2\u3001\u7528\u6bdb\u76ae\u6469\u64e6\u6a61\u80f6\u68d2\u3001\u6a61\u80f6\u68d2\u5e26\u4e86\u8d1f\u7535\uff0c\u8fd9\u662f\u7531\u4e8e\uff08 \uff09
A\u3001\u6bdb\u76ae\u675f\u7f1a\u7535\u5b50\u7684\u80fd\u529b\u6bd4\u8f83\u5f31
B\u3001\u6a61\u80f6\u68d2\u7684\u6b63\u7535\u8377\u8f6c\u79fb\u5230\u6bdb\u76ae\u4e0a
C\u3001\u6469\u64e6\u8fc7\u7a0b\u4e2d\u521b\u9020\u4e86\u8d1f\u7535\u8377
D\u3001\u6a61\u80f6\u68d2\u4e0a\u6709\u4e86\u591a\u4f59\u7684\u7535\u4e86
3\u3001\u67d0\u5bb6\u7528\u7535\u5668\u6b63\u5e38\u5de5\u4f5c\u65f6\uff0c\u6d4b\u5f97\u901a\u8fc7\u5b83\u7684\u7535\u6d41\u4e3a4A\uff0c\u5219\u6b64\u7535\u5668\u53ef\u80fd\u662f\u4e0b\u5217\u4e2d\u7684\uff08 \uff09
A\u3001\u5bb6\u7528\u7a7a\u8c03\u673a
B\u3001\u7535\u89c6\u673a
C\u3001\u5bb6\u7528\u6d17\u8863\u673a
D\u3001\u7535\u98ce\u6247
4\u3001\u5df2\u77e5R1\uff1aR2=2\uff1a1\u5219\uff08 \uff09
A\u3001\u4e32\u8054\u65f6\uff0c\u5b83\u4eec\u7684\u7535\u6d41\u4e4b\u6bd4\u4e3a2\uff1a1
B\u3001\u4e32\u8054\u65f6\uff0c\u5b83\u4eec\u7684\u529f\u7387\u4e4b\u6bd4\u4e3a1\uff1a1
C\u3001\u5e76\u8054\u65f6\uff0c\u5b83\u4eec\u7684\u7535\u6d41\u4e4b\u6bd4\u4e3a2\uff1a1
D\u3001\u5e76\u8054\u65f6\uff0c\u5b83\u4eec\u7684\u7535\u538b\u4e4b\u6bd4\u4e3a1\uff1a1
5\u3001\u5728\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u8981\u4f7fR1\u548cR2\u4e3a\u5e76\u8054\u5173\u7cfb\uff0c\u90a3\u4e48\u7532\u3001\u4e59\u3001\u4e19\u4e09\u53ea\u7535\u8868\u4f9d\u6b21\u5e94\u5f53\u662f\uff08 \uff09
A\u3001\u7535\u538b\u8868\u3001\u7535\u6d41\u8868\u3001\u7535\u538b\u8868
B\u3001\u7535\u6d41\u8868\u3001\u7535\u538b\u8868\u3001\u7535\u6d41\u8868
C\u3001\u7535\u6d41\u8868\u3001\u7535\u6d41\u8868\u3001\u7535\u538b\u8868
D\u3001\u7535\u538b\u8868\u3001\u7535\u6d41\u8868\u3001\u7535\u6d41\u8868
6\u3001\u5728\u201c\u4f0f\u5b89\u6cd5\u6d4b\u7535\u963b\u201d\u7684\u5b9e\u9a8c\u4e2d\uff0c\u6ed1\u52a8\u53d8\u963b\u5668\u4e0d\u80fd\u8d77\u5230\u7684\u4f5c\u7528\u662f\uff08 \uff09
A\u3001\u6539\u53d8\u7535\u8def\u4e2d\u7684\u7535\u6d41
B\u3001\u6539\u53d8\u88ab\u6d4b\u7535\u963b\u4e24\u7aef\u7684\u7535\u538b
C\u3001\u6539\u53d8\u88ab\u6d4b\u7535\u963b\u7684\u963b\u503c
D\u3001\u6539\u53d8\u88ab\u6d4b\u7535\u963b\u4e24\u7aef\u7684\u7535\u538b
7\u3001\u5728\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u95ed\u5408\u5f00\u5173\u540e\uff0c\u8981\u4f7f\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u5411\u53f3\u79fb\u52a8\u65f6\uff0c\u7535\u6d41\u8868\u7684\u793a\u6570\u51cf\u5c0f\uff0c\u5219M\u3001N\u5e94\u4e0e\u6ed1\u52a8\u53d8\u963b\u5668\u4e0a\u7684\u54ea\u4e24\u4e2a\u63a5\u7ebf\u67f1\u8fde\u63a5\uff08 \uff09
A\u3001M\u63a5C\uff0cN\u63a5D
B\u3001M\u63a5A\uff0cN\u63a5B
C\u3001M\u63a5C\uff0cN\u63a5B
D\u3001M\u63a5A\uff0cN\u63a5D
8\u3001\u628a\u4e00\u6839\u7c97\u7ec6\u5747\u5300\u7684\u7535\u963b\u4e1d\u5f2f\u6210\u7b49\u8fb9\u4e09\u89d2\u5f62ABC\uff0c\u5982\u56fe\u6240\u793a\uff0c\u56fe\u4e2dD\u4e3aAB\u8fb9\u7684\u4e2d\u70b9\uff0c\u5982\u679cCD\u4e24\u7aef\u7684\u7535\u963b\u503c\u4e3a9 \uff0c\u5219AB\u4e24\u7aef\u7684\u7535\u963b\u503c\u4e3a\uff08 \uff09
A\u300136 B\u300112 C\u30018 D\u30014
9\u3001\u5173\u4e8e\u516c\u5f0f \uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f\uff08 \uff09
A\u3001\u5bfc\u4f53\u7684\u7535\u963b\u4e0e\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u6210\u6b63\u6bd4
B\u3001\u5bfc\u4f53\u7684\u7535\u963b\u4e0e\u5bfc\u4f53\u7684\u7535\u6d41\u6210\u53cd\u6bd4
C\u3001\u5bfc\u4f53\u7684\u7535\u963b\u4e0e\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u4e0e\u901a\u8fc7\u5bfc\u4f53\u7684\u7535\u6d41\u6210\u53cd\u6bd4
D\u3001\u5bfc\u4f53\u7684\u7535\u963b\u4e0e\u5bfc\u4f53\u4e24\u7aef\u7684\u7535\u538b\u548c\u901a\u8fc7\u5bfc\u4f53\u7684\u7535\u6d41\u90fd\u65e0\u5173
10\u3001\u5728\u56fe\u4e2d\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u7535\u538b\u4e3a3V\uff0c\u5f53\u5f00\u5173S1\u3001S2\u90fd\u95ed\u5408\u65f6\uff0c\u5219\uff08 \uff09
A\u3001\u7535\u538b\u8868\u7684\u793a\u6570\u4e3a3V
B\u3001\u7535\u6d41\u8868\u5c06\u88ab\u70e7\u574f
C\u3001\u706fL1\u4e0d\u4eae\uff0c\u706fL
2\u4eae
D\u3001\u4e24\u76cf\u706f\u90fd\u5c06\u88ab\u70e7\u574f
11\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u3001\u7535\u6e90\u7535\u538b\u4fdd\u6301\u4e0d\u53d8\uff0c\u5f53\u95ed\u5408\u5f00\u5173\u540e\uff0c\u5728\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u5411\u53f3\u79fb\u52a8\u7684\u8fc7\u7a0b\u4e2d\uff08 \uff09
A\u3001\u7535\u6d41\u8868\u793a\u6570\u53d8\u5927\uff0c\u7535\u538b\u8868\u793a\u6570\u4e0d\u53d8
B\u3001\u4e24\u8868\u793a\u6570\u5747\u53d8\u5c0f
C\u3001\u7535\u6d41\u8868\u793a\u6570\u53d8\u5c0f\uff0c\u7535\u538b\u8868\u793a\u6570\u4e0d\u53d8
D\u3001\u4e24\u8868\u793a\u6570\u5747\u53d8\u5927
12\u3001\u5982\u56fe\u6240\u793a\uff0c\u4e24\u76cf\u76f8\u540c\u7684\u7535\u706f\u5728\u95ed\u5408\u5f00\u5173\u540e\u90fd\u80fd\u53d1\u5149\uff0c\u8fc7\u4e86\u4e00\u4f1a\u513f\uff0c\u4e24\u76cf\u7535\u706f\u7a81\u7136\u90fd\u4e0d\u4eae\u4e86\uff0c\u4e14\u7535\u538b\u8868\u548c\u7535\u6d41\u8868\u7684\u793a\u6570\u5747\u53d8\u4e3a\u96f6\uff0c\u6b64\u65f6\u7535\u8def\u53d1\u751f\u7684\u6545\u969c\u53ef\u80fd\u662f\uff08 \uff09
A\u3001\u7535\u706fL1\u706f\u4e1d\u65ad\u4e86
B\u3001\u7535\u706fL2\u706f\u4e1d\u65ad\u4e86
C\u3001\u7535\u706fL1\u77ed\u8def
D\u3001\u7535\u706fL2\u77ed\u8def
13\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u95ed\u5408\u5f00\u5173\u540e\uff0c\u5c0f\u706f\u6ce1L1\u3001L2\u90fd\u6b63\u5e38\u53d1\u5149\uff0c\u7535\u8868\u5b8c\u597d\uff0c\u5982\u679c\u5c06\u7535\u538b\u8868\u4e0e\u7535\u6d41\u8868\u4e92\u6362\uff0c\u90a3\u4e48\u5c06\u51fa\u73b0\u7684\u60c5\u51b5\u662f\uff08 \uff09
A\u3001\u7535\u538b\u8868\u793a\u6570\u4e0d\u53d8\uff0c\u706f\u6ce1L1\uff0cL2\u4e0d\u4eae
B\u3001\u7535\u538b\u8868\u793a\u6570\u53d8\u5c0f\uff0c\u706f\u6ce1L1\uff0cL2\u53d8\u4eae
C\u3001\u7535\u6d41\u8868\u793a\u6570\u53d8\u5927\uff0c\u706f\u6ce1L1\uff0cL2\u53d8\u4eae
D\u3001\u7535\u6d41\u8868\uff0c\u7535\u6e90\u70e7\u574f\uff0c\u706f\u6ce1L1\uff0cL2\u4e0d\u4eae
14\u3001\u5982\u56fe\u6240\u793a\u7535\u8def\uff0c\u7535\u6e90\u7535\u538b\u4e0d\u53d8\uff0c\u5f53\u5f00\u5173\u95ed\u5408\uff0c\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247P\u5411\u53f3\u79fb\u52a8\u65f6\uff0c\u4e0b\u5217\u5224\u65ad\u6b63\u786e\u7684\u662f\uff08 \uff09
A\u3001\u7535\u538b\u8868\u793a\u6570\u53d8\u5927
B\u3001\u7535\u6d41\u8868A1\u7684\u793a\u6570\u53d8\u5c0f
C\u3001\u706f\u6ce1\u53d8\u6697
D\u3001\u7535\u6d41\u8868A2\u793a\u6570\u53d8\u5c0f
15\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u7535\u538b\u4fdd\u6301\u4e0d\u53d8\uff0c\u95ed\u5408\u5f00\u5173S\uff0c\u7535\u8def\u6b63\u5e38\u5de5\u4f5c\uff0c\u8fc7\u4e86\u4e00\u4f1a\uff0c\u4e00\u4e2a\u7535\u8868\u7684\u793a\u6570\u53d8\u5927\uff0c\u53e6\u4e00\u4e2a\u7535\u8868\u7684\u793a\u6570\u53d8\u5c0f\uff0c\u5219\u4e0b\u5217\u5224\u65ad\u4e2d\u6b63\u786e\u7684\u662f\uff08 \uff09
A\u3001\u7535\u963bR\u4e00\u5b9a\u65ad\u8def
B\u3001\u7535\u963bR\u4e00\u5b9a\u77ed\u8def
C\u3001\u706fL\u7684\u4eae\u5ea6\u53ef\u80fd\u4e0d\u53d8
D\u3001\u706fL\u7684\u4eae\u5ea6\u53ef\u80fd\u53d8\u4eae
16\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u5f53\u5f00\u5173\u65ad\u5f00\uff0c\u7532\u3001\u4e59\u4e24\u8868\u4e3a\u7535\u6d41\u8868\u65f6\uff0c\u793a\u6570\u4e4b\u6bd4\u4e3aI\u7532\uff1aI\u4e59=2\uff1a3\uff0c\u5f53\u5f00\u5173\u95ed\u5408\uff0c\u7532\u3001\u4e59\u4e24\u8868\u4e3a\u7535\u538b\u8868\u65f6\uff0c\u5219\u4e24\u8868\u7684\u793a\u6570\u4e4b\u6bd4U\u7532\uff1aU\u4e59\u4e3a\uff08 \uff09
A\u30012\uff1a1 B\u30013\uff1a1 C\u30011\uff1a3 D\u30013\uff1a2
17\u3001\u4e24\u4e2a\u5b9a\u503c\u7535\u963bR1\u548cR2\uff0c\u963b\u503c\u5206\u522b\u4e3a10 \uff0c30 \uff0c\u5141\u8bb8\u901a\u8fc7\u7684\u6700\u5927\u7535\u6d41\u5206\u522b\u4e3a1A\uff0c0.5A\uff0c\u82e5\u5c06\u5b83\u4eec\u4e32\u8054\u5728\u7535\u8def\u4e2d\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f\uff08 \uff09
A\u3001\u52a0\u5728\u5b83\u4eec\u4e24\u7aef\u7535\u538b\u7684\u6700\u5927\u503c\u4e3a25v
B\u3001\u5b83\u4eec\u7684\u603b\u7535\u963b\u4e3a40
C\u3001\u901a\u8fc7\u7535\u8def\u7684\u7535\u6d41\u4e0d\u5141\u8bb8\u5927\u4e8e0.5A
D\u3001\u5b83\u4eec\u6d88\u8017\u603b\u529f\u7387\u7684\u6700\u5927\u503c\u4e3a10W
\u4e8c\u3001\u586b\u7a7a
18\u3001\u5982\u56fe\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u7535\u538b\u4e0d\u53d8\uff0c\u5f00\u5173\u65ad\u5f00\u65f6\u706fL\u6b63\u5e38\u53d1\u5149\uff0c\u5f53\u5f00\u5173\u95ed\u5408\u65f6\uff0c\u7535\u706fL_______\u6b63\u5e38\u53d1\u5149\uff08\u586b\u201c\u80fd\u201d\u6216\u201c\u4e0d\u80fd\u201d\uff09\uff0c\u56fe\u4e2d\u7535\u6d41\u8868\u7684\u793a\u6570\u5c06___________\u7535\u538b\u8868\u7684\u793a\u6570\u5c06________\u3002\uff08\u4e24\u7a7a\u5747\u9009\u586b\u201c\u589e\u5927\uff0c\u51cf\u5c0f\u201d\u6216\u201c\u4e0d\u53d8\u201d\uff09
19\u3001\u5982\u56fe\u662fR1\u548cR2\u4e24\u7535\u963b\u4e2d\u7684\u7535\u6d41\u968f\u5b83\u4eec\u4e24\u7aef\u7535\u538b\u53d8\u5316\u7684I~U\u56fe\u50cf\uff0c\u4ece\u56fe\u50cf\u53ef\u77e5\uff0c\u7535\u963bR1_____R2\uff08\u9009\u586b\u201c<\u3001>\u201d\u6216\u201c=\u201d\uff09
20\u3001\u5c06\u4e00\u4e2a20 \u7684\u5b9a\u503c\u7535\u963bR1\u4e0e\u53e6\u4e00\u4e2a\u5b9a\u503c\u7535\u963bR2\u5e76\u8054\u540e\uff0c\u5f97\u523012 \u7684\u7b49\u6548\u7535\u963b\uff0c\u5219R2\u7684\u963b\u503c\u662f____ \uff0c\u82e5\u518d\u589e\u52a0\u4e00\u4e2a50 \u7684\u7535\u963bR3\u4e0eR1\u548cR2\u4e32\u8054\uff0c\u5219\u4e32\u8054\u540e\u7684\u603b\u7535\u963b\u4e3a____ \u3002
21\u3001\u5728\u56fe\u4e2d\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u7535\u538b\u4fdd\u6301\u4e0d\u53d8\uff0c\u5f53\u5f00\u5173\u7531\u65ad\u5f00\u5230\u95ed\u5408\u65f6\uff0c\u7535\u6d41\u8868\u7684\u793a\u6570\u5c06_____\uff0c\u7535\u538b\u8868\u4e0e\u7535\u6d41\u8868\u793a\u6570\u7684\u6bd4\u503c\u5c06 \u3002\uff08\u5747\u9009\u586b\u53d8\u5927\u3001\u53d8\u5c0f\u6216\u4e0d\u53d8\uff09
22\u3001\u5982\u56fe\u6240\u793a\u7535\u8def\uff0c\u95ed\u5408\u5f00\u5173\u540e\uff0c\u4e24\u706f\u90fd\u6b63\u5e38\u53d1\u5149\uff0c\u4e24\u7535\u8868\u7684\u6307\u9488\u90fd\u6709\u504f\u8f6c\uff0c\u793a\u6570\u7a33\u5b9a\uff0c\u5df2\u77e5\u7535\u6e90\u7535\u538b\u4e3a8v\uff0c\u706fL1\u7684\u7535\u963b\u4e3a16 \uff0c\u706fL2\u7684\u7535\u963b\u4e3a12 \uff0c\u5219\u7532\u7535\u8868\u7684\u793a\u6570\u4e3a_____\uff1b\u4e59\u7535\u8868\u7684\u793a\u6570\u4e3a______\u3002
23\u3001\u5982\u56fe\u6240\u793a\uff0cAB\u4e24\u7aef\u7535\u538b\u6052\u4e3aU\uff0c\u4e09\u4e2a\u7535\u963bR1\u3001R2\u3001R3\u7684\u963b\u503c\u5747\u4e3a12 \uff0c\u4e00\u4f4d\u540c\u5b66\u8bef\u5c06\u4e00\u53ea\u7535\u6d41\u8868\u5e76\u8054\u5728\u4e86\u7535\u963bR3\u7684\u4e24\u7aef\uff0c\u7ed3\u679c\u53d1\u73b0\u7535\u6d41\u8868\u7684\u793a\u6570\u4e3a0.5A\uff0c\u636e\u6b64\u53ef\u4ee5\u63a8\u77e5AB\u4e24\u7aef\u7535\u538bU=____V\u3002
\u4e09\u3001\u4f5c\u56fe\u4e0e\u5b9e\u9a8c
24\u3001\u753b\u51fa\u4f0f\u5b89\u6cd5\u6d4b\u7535\u963b\u7684\u7535\u8def\u56fe\uff0c\u5e76\u5199\u51fa\u4e3b\u8981\u7684\u5b9e\u9a8c\u6b65\u9aa4\u53ca\u9700\u8981\u6d4b\u91cf\u7684\u7269\u7406\u91cf\u3002\u5199\u51faRx\u7684\u8868\u8fbe\u5f0f\u3002
\u56db\u3001\u8ba1\u7b97
25\u3001\u5728\u56fe\u4e2d\u6240\u793a\u7684\u7535\u8def\u4e2d\uff0c\u7535\u963bR1\u7684\u963b\u503c\u4e3a10 \uff0c\u95ed\u5408\u5f00\u5173S\uff0c\u7535\u6d41\u8868A1\u7684\u793a\u6570\u4e3a0.3A\uff0c\u7535\u6d41\u8868\u7684A\u7684\u793a\u6570\u4e3a0.5A\uff0c\u6c42\uff1a
\uff081\uff09 \u901a\u8fc7\u7535\u963bR2\u7684\u7535\u6d41
\uff082\uff09 \u7535\u6e90\u7535\u538b
\uff083\uff09 \u7535\u963bR2\u7684\u963b\u503c
26\u3001\u5982\u56fe\u6240\u793a\u7535\u963bR1\u7684\u963b\u503c\u4e3a5 \uff0c\uff081\uff09\u5f53\u5f00\u5173S
1\u95ed\u5408\uff0cS2\u65ad\u5f00\uff0c\u6ed1\u7247P\u6ed1\u81f3\u6700\u5de6\u7aef\u65f6\uff0c\u7535\u538b\u8868\u793a\u6570\u4e3a6v\uff0c\u7535\u6d41\u8868\u793a\u6570\u4e3a0.3A\uff0c\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6700\u5927\u963b\u503c\u662f\u591a\u5c11\uff1f\uff082\uff09\u82e5R2\u7684\u963b\u503c\u4e3a20 \uff0c\u5f53\u5f00\u5173S1\uff0cS2\u5747\u95ed\u5408\uff0c\u6ed1\u7247\u6ed1\u81f3\u6700\u53f3\u7aef\u65f6\uff0c\u7535\u6d41\u8868\u7684\u793a\u6570\u662f\u591a\u5c11\uff1f
\u7b54 \u6848
1\uff0eB 2\uff0eAD 3\uff0eA 4\uff0eD 5\uff0eB 6\uff0eC 7\uff0eD 8\uff0eC 9\uff0eD 10\uff0eB
11\uff0eC 12\uff0eA 13\uff0eA 14\uff0eD 15\uff0eD 16\uff0eB 17\uff0eBCD
18\uff0e\u80fd \u589e\u5927 \u4e0d\u53d8
19\uff0e<
20\uff0e30 100
21\uff0e\u53d8\u5927 \u4e0d\u53d8
22\uff0e0.5A 8V
23\uff0e12V
24\uff0e
1\uff0e\u6309\u7535\u8def\u56fe\u6309\u4e00\u5b9a\u987a\u5e8f\u8fde\u63a5\u7535\u8def\uff0c\u8fde\u63a5\u65f6\u5f00\u5173\u8981\u65ad\u5f00\uff0c\u6ed1\u52a8\u53d8\u963b\u5668\u7684\u6ed1\u7247\u7f6e\u4e8e\u963b\u503c\u6700\u5927\u4f4d\u7f6e\uff1b
2\uff0e\u6ce8\u610f\u7528\u8bd5\u89e6\u6cd5\u9009\u62e9\u91cf\u7a0b\uff1b
3\uff0e\u7ecf\u68c0\u67e5\u65e0\u8bef\u540e\u95ed\u5408\u5f00\u5173\uff0c\u5e76\u79fb\u52a8\u6ed1\u7247P\u6d4b\u51fa\u51e0\u7ec4Rx\u4e24\u7aef\u7684\u7535\u538bU\uff0c\u7535\u6d41\u503cI\uff1b
4\uff0e\u5e94\u7528\u516c\u5f0f\u8ba1\u7b97 \u3002
25\uff0e\u89e3\uff1a
\u2460S\u95ed\u5408\u65f6\uff0cR1\u4e0eR2\u5e76\u8054
I=I1+I2
\u2234R2\u4e2d\u7535\u6d41I2=I-I1=0.5A-0.3A=0.2A
\u2461\u7535\u6e90\u7535\u538bU=U1=I1R1=0.3A\u00d710\u03a9=3V
\u2462\u6839\u636e
26\uff0e\u89e3\uff1a
\u2460\u5f53\u5f00\u5173S1\u95ed\u5408\uff0cS2\u65ad\u5f00\u65f6\uff0c\u53d8\u963b\u5668\u4e0eR1\u4e32\u8054\uff0c \u6d4b\u603b\u7535\u538b\uff0c \u6d4b\u603b\u7535\u6d41
\u2461\u5f53\u5f00\u5173S1\u3001S2\u5747\u95ed\u5408\u65f6\uff0c\u6ed1\u7247\u5728\u6700\u53f3\u7aef\u65f6\uff0cR1\u4e0eR2\u5e76\u8054
\u2488\u529bF\uff1a\u529b\u662f\u7269\u4f53\u5bf9\u7269\u4f53\u7684\u4f5c\u7528\u3002\u7269\u4f53\u95f4\u529b\u7684\u4f5c\u7528\u603b\u662f\u76f8\u4e92\u7684\u3002
\u529b\u7684\u5355\u4f4d\uff1a\u725b\u987f\uff08N\uff09\u3002\u6d4b\u91cf\u529b\u7684\u4eea\u5668\uff1a\u6d4b\u529b\u5668\uff1b\u5b9e\u9a8c\u5ba4\u4f7f\u7528\u5f39\u7c27\u79e4\u3002
\u529b\u7684\u4f5c\u7528\u6548\u679c\uff1a\u4f7f\u7269\u4f53\u53d1\u751f\u5f62\u53d8\u6216\u4f7f\u7269\u4f53\u7684\u8fd0\u52a8\u72b6\u6001\u53d1\u751f\u6539\u53d8\u3002
\u7269\u4f53\u8fd0\u52a8\u72b6\u6001\u6539\u53d8\u662f\u6307\u7269\u4f53\u7684\u901f\u5ea6\u5927\u5c0f\u6216\u8fd0\u52a8\u65b9\u5411\u6539\u53d8\u3002
\u2489\u529b\u7684\u4e09\u8981\u7d20\uff1a\u529b\u7684\u5927\u5c0f\u3001\u65b9\u5411\u3001\u4f5c\u7528\u70b9\u53eb\u505a\u529b\u7684\u4e09\u8981\u7d20\u3002
\u529b\u7684\u56fe\u793a\uff0c\u8981\u4f5c\u6807\u5ea6\uff1b\u529b\u7684\u793a\u610f\u56fe\uff0c\u4e0d\u4f5c\u6807\u5ea6\u3002
\u248a\u91cd\u529bG\uff1a\u7531\u4e8e\u5730\u7403\u5438\u5f15\u800c\u4f7f\u7269\u4f53\u53d7\u5230\u7684\u529b\u3002\u65b9\u5411\uff1a\u7ad6\u76f4\u5411\u4e0b\u3002
\u91cd\u529b\u548c\u8d28\u91cf\u5173\u7cfb\uff1aG=mg m=G/g
g=9.8\u725b\uff0f\u5343\u514b\u3002\u8bfb\u6cd5\uff1a9.8\u725b\u6bcf\u5343\u514b\uff0c\u8868\u793a\u8d28\u91cf\u4e3a1\u5343\u514b\u7269\u4f53\u6240\u53d7\u91cd\u529b\u4e3a9.8\u725b\u3002
\u91cd\u5fc3\uff1a\u91cd\u529b\u7684\u4f5c\u7528\u70b9\u53eb\u505a\u7269\u4f53\u7684\u91cd\u5fc3\u3002\u89c4\u5219\u7269\u4f53\u7684\u91cd\u5fc3\u5728\u7269\u4f53\u7684\u51e0\u4f55\u4e2d\u5fc3\u3002
\u248b\u4e8c\u529b\u5e73\u8861\u6761\u4ef6\uff1a\u4f5c\u7528\u5728\u540c\u4e00\u7269\u4f53\uff1b\u4e24\u529b\u5927\u5c0f\u76f8\u7b49\uff0c\u65b9\u5411\u76f8\u53cd\uff1b\u4f5c\u7528\u5728\u4e00\u76f4\u7ebf\u4e0a\u3002
\u7269\u4f53\u5728\u4e8c\u529b\u5e73\u8861\u4e0b\uff0c\u53ef\u4ee5\u9759\u6b62\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u3002
\u7269\u4f53\u7684\u5e73\u8861\u72b6\u6001\u662f\u6307\u7269\u4f53\u5904\u4e8e\u9759\u6b62\u6216\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u72b6\u6001\u3002\u5904\u4e8e\u5e73\u8861\u72b6\u6001\u7684\u7269\u4f53\u6240\u53d7\u5916\u529b\u7684\u5408\u529b\u4e3a\u96f6\u3002
\u248c\u540c\u4e00\u76f4\u7ebf\u4e8c\u529b\u5408\u6210\uff1a\u65b9\u5411\u76f8\u540c\uff1a\u5408\u529bF=F1+F2 ;\u5408\u529b\u65b9\u5411\u4e0eF1\u3001F2\u65b9\u5411\u76f8\u540c\uff1b
\u65b9\u5411\u76f8\u53cd\uff1a\u5408\u529bF=F1-F2\uff0c\u5408\u529b\u65b9\u5411\u4e0e\u5927\u7684\u529b\u65b9\u5411\u76f8\u540c\u3002
\u248d\u76f8\u540c\u6761\u4ef6\u4e0b\uff0c\u6eda\u52a8\u6469\u64e6\u529b\u6bd4\u6ed1\u52a8\u6469\u64e6\u529b\u5c0f\u5f97\u591a\u3002
\u6ed1\u52a8\u6469\u64e6\u529b\u4e0e\u6b63\u538b\u529b\uff0c\u63a5\u89e6\u9762\u6750\u6599\u6027\u8d28\u548c\u7c97\u7cd9\u7a0b\u5ea6\u6709\u5173\u3002
7\uff0e\u725b\u987f\u7b2c\u4e00\u5b9a\u5f8b\u4e5f\u79f0\u4e3a\u60ef\u6027\u5b9a\u5f8b\u5176\u5185\u5bb9\u662f\uff1a\u4e00\u5207\u7269\u4f53\u5728\u4e0d\u53d7\u5916\u529b\u4f5c\u7528\u65f6\uff0c\u603b\u4fdd\u6301\u9759\u6b62\u6216\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u72b6\u6001\u3002 \u60ef\u6027\uff1a\u7269\u4f53\u5177\u6709\u4fdd\u6301\u539f\u6765\u7684\u9759\u6b62\u6216\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u72b6\u6001\u7684\u6027\u8d28\u53eb\u505a\u60ef\u6027\u3002
\u901f\u5ea6\uff1av=s/t
\u5bc6\u5ea6\uff1a\u03c1\uff1dm/v
\u91cd\u529b\uff1aG=mg
\u538b\u5f3a\uff1ap=F/s(\u6db2\u4f53\u538b\u5f3a\u516c\u5f0f\u4e0d\u76f4\u63a5\u8003\uff09
\u6d6e\u529b\uff1aF\u6d6e\uff1dG\u6392\uff1d\u03c1\u6db2gV\u6392
\u6f02\u6d6e\u60ac\u6d6e\u65f6\uff1aF\u6d6e\uff1dG\u7269
\u6760\u6746\u5e73\u8861\u6761\u4ef6\uff1aF1\u00d7L1\uff1dF2\u00d7L2
\u529f\uff1aW=FS
\u529f\u7387\uff1aP=W/t\uff1dFv
\u673a\u68b0\u6548\u7387\uff1a\u03b7\uff1dW\u6709\u7528/W\u603b\uff1dGh/Fs=G/Fn(n\u4e3a\u6ed1\u8f6e\u7ec4\u7684\u80a1\u6570
可以求b的电压
连接好后总电阻150欧姆，所以ab的电压是c的一半，即为5v
你已经说了，三个100欧姆的电阻abc,还问什么阻值啊？不是100R吗？
问法有问题,b的阻值不就100欧吗？还要大家求什么？
不清楚你到底要问什么.求a与b并联后的电阻?还是并联电阻两端的电压?
绛旓細鍙互姹俠鐨勭數鍘 杩炴帴濂藉悗鎬鐢甸樆150娆у锛屾墍浠b鐨勭數鍘嬫槸c鐨勪竴鍗婏紝鍗充负5v
绛旓細鏄剧劧锛鐢甸樆A鐨勭數鍘嬫渶澶э紝鏍规嵁鍏紡P=UI锛岀數闃籄鐨勭數鍔熺巼鏈澶э紱 鏁呯瓟妗堜负锛欳锛孉锛
绛旓細璁颁綇锛屼覆鑱鐢甸樆锛屼覆鑱斿悗鐨勭數闃绘瘮涓茶仈鍓嶄换浣曚竴涓數闃婚兘澶с傚苟鑱旂數闃伙紝骞惰仈鍚庣殑鐢甸樆姣斿苟鑱斿墠鐨勪换浣曚竴涓數闃婚兘灏 鎵浠ュ氨鏈堿>B>C>R 涓婇潰鐨勮瘽锛屽彧鏈夐氳繃鏁板寮忓瓙璇佹槑浜嗭紒
绛旓細鎺ユ垚鏄熷舰鎺ユ硶鏃讹紝绾跨數鍘嬩负380浼忥紝鐢甸樆涓100娆锛屽垯绾跨數娴佸姏3锛8瀹夈傛帴鎴愪笁瑙掑舰鎺ユ硶鏃讹紝绾跨數鍘嬩负220浼忥紝鐢甸樆涓100娆э紝鍒欑數闃昏浆鎴愭槦褰㈡帴娉曪紝绛夋晥鐢甸樆涓33锛3娆э紝绾跨數娴佸姏6锛6瀹夈
绛旓細BC,CA涓茶仈锛屽拰鐢甸樆鏄80銆傜劧鍚庝笌AB骞惰仈銆傜瓑鏁堢數闃讳负R锛屽垯1/R=1/20+1/80=1/16,R=16.
绛旓細RC=18-12-4=2娆
绛旓細2.涓や釜鐢甸樆鍊煎畬鍏ㄧ浉绛鐨勭數闃,鑻ュ苟鑱斿悗鐨勬荤數闃绘槸10娆у,鍒欏皢瀹冧滑涓茶仈鐨勬荤數闃绘槸銆 銆 A.5娆у B.10娆у C.20娆у D.40娆у 3.涓鏉″绾跨殑鐢甸樆鏄疪,鎶婂畠瀵规姌鍒嗘垚绛夐暱鐨勪袱娈靛悗,鍐嶆妸杩欎袱娈靛苟鑱旇捣鏉ヤ娇鐢,杩欐椂鐢甸樆 鏄斻 A. R/4 B.R/2 C. R/2 4.4涓數闃,鐢甸樆鍊奸兘鏄疪,鎶婂畠浠苟鑱旇捣鏉,鎬荤數闃绘槸銆...
绛旓細涓茶繛鐢佃矾鐢垫祦涓嶅彉锛氭牴鎹數鍔熺巼鍏紡 W=I^2*R 1鐢甸樆鍏佽杩囩數娴=0.2.A 2鐢甸樆鍏佽杩囩數娴=0.8.A 3鐢甸樆鍏佽杩囩數娴=1.1.A 涓茶繛鐢佃矾涓渶灏忓厑璁歌繃鐢垫祦=0.2.A 娆у瀹氬緥 V=I*R 鏈澶х數鍘=0.2x(12.5+90+100)=40.5浼
绛旓細1W 100娆у鐨鍙互鎵垮彈0.1A鐨勭數娴侊紝10V鐢靛帇 涓変釜鐢甸樆涓茶仈鍙互鎵垮彈0.1A鐢垫祦锛30V鐢靛帇锛屽姛鐜3W 姝ゆ椂300娆у鐨勫姛鐜=30*30/300=3W 鎵浠ヤ竴鍏6W銆傚洜涓哄苟鑱旂殑鎬荤數闃诲皬浜庝换浣曠殑涓涓苟鑱鐢甸樆,鑰屼覆鑱旂殑鎬荤數闃诲垯澶т簬浠讳綍鐨勪竴涓覆鑱旂數闃.鏉′欢涓墍缁欑殑涓変釜鐢甸樆鍙湁涓涓皬浜60,鎵浠ヤ笉鍙兘鏄噰鐢ㄤ覆鑱斿緱鍒扮殑,鍙兘鐢...
绛旓細杩欓寰堢畝鍗曘涓夌數闃涓棿鐨勭悊鎯充氦鍙夊绾跨數鍘嬫棤鐤戞槸鐩稿悓鐨勩傞氳繃鐢甸樆鐨勭數娴佸ぇ灏忎笌鐢甸樆涓ょ鐨勭數鍘嬪樊浠ュ強鐢甸樆鐨勯樆鍊兼湁鍏筹紝鎵浠ユ牴鎹甎=IR锛屽彲浠ヨ绠楀嚭3涓鐢甸樆涓婄殑鐢靛帇锛岃岃繖涓數鍘嬪氨鏄袱绔鐨勭數闃鐢靛帇宸俛绔笌涓棿鐨勭數鍘嬪樊U=IR=2*5=10浼忥紝鐢垫祦鏂瑰悜鐢盿鍚戜腑闂达紝鎵浠绔數鍘嬫瘮涓棿楂10浼忋俠绔笌涓棿鐨勭數鍘嬪樊...
