当闭合家里的电灯开关时电灯就会亮起来，电流是如何流动呢？请查阅资料画出简单的电路图。 我无意看到一道中考题，考察家庭开关的电路，开关闭合时，开关上...
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A.\u7535\u6d41\u7531A\u5230B\uff0c\u7535\u5b50\u7531A\u5230B
B.\u7535\u6d41\u7531A\u5230B\uff0c\u7535\u5b50\u7531B\u5230A
C.\u7535\u6d41\u7531B\u5230A\uff0c\u7535\u5b50\u7531B\u5230A
D.\u7535\u6d41\u7531B\u5230A\uff0c\u7535\u5b50\u7531A\u5230B
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A.\u4ecd\u7136\u53d1\u5149
B.\u4e0d\u53d1\u5149
C.\u5f00\u5173\u95ed\u5408\u65f6\u53d1\u5149
D.\u5f00\u5173\u65ad\u5f00\u65f6\u4e5f\u80fd\u53d1\u5149
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A. \u3001 \u90fd\u95ed\u5408 B. \u6253\u5f00\uff0c \u95ed\u5408
C. \u95ed\u5408\uff0c \u6253\u5f00 D. \u3001 \u90fd\u6253\u5f00
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A.\u5f53\u5f00\u5173 \u95ed\u5408\uff0c \u65ad\u5f00\u65f6\uff0c\u53ea\u6709 \u53d1\u5149
B.\u5f53\u5f00\u5173 \u3001 \u90fd\u95ed\u5408\u65f6\uff0c\u706f \u3001 \u53d1\u5149\uff0c\u4e14\u662f\u5e76\u8054
C.\u5f53\u5f00\u5173 \u3001 \u90fd\u65ad\u5f00\u65f6\uff0c\u706f \u3001 \u53d1\u5149\uff0c\u4e14\u662f\u4e32\u8054
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\u601d\u8def\u5206\u6790
\u9996\u5148\u6839\u636e\u9898\u610f\u786e\u5b9a\u7535\u8def\u7684\u8fde\u63a5\u65b9\u5f0f\uff0c\u7531\u4e8e\u7532\u3001\u4e59\u4e24\u529e\u516c\u5ba4\u7684\u7535\u94c3\u54cd\u65f6\u4e92\u4e0d\u5f71\u54cd\uff0c\u6240\u4ee5\u4e24\u4e2a\u7535\u94c3\u5e94\u5e76\u8054.\uff08\u8fd9\u662f\u5206\u6790\u7684\u7b2c\u4e00\u6b65\uff09\u8981\u4f7f\u4efb\u4f55\u4e00\u65b9\u95ed\u5408\u5f00\u5173\uff0c\u5bf9\u65b9\u7535\u94c3\u54cd\uff0c\u5e94\u628a\u5f00\u5173\u548c\u5bf9\u65b9\u7684\u7535\u94c3\u4e32\u8054\u5728\u4e00\u6761\u652f\u8def.
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\u4f8b12\uff1a\u5728\u56fe5-16\u4e2d\uff0c\u6b63\u786e\u7684\u7535\u8def\u662f( )
\u601d\u8def\u5206\u6790
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\u4f8b13\uff1a\u5982\u56fe5-17\u6240\u793a\uff0c\u6b63\u786e\u8bfb\u6570\u662f( )
A.\u57280\uff5e0.6A\u91cf\u7a0b\u5185\uff0c\u6307\u9488\u8bfb\u6570\u4e3a0.5A
B.\u57280\uff5e0.6A\u91cf\u7a0b\u5185\uff0c\u6307\u9488\u8bfb\u6570\u4e3a0.28A
C.\u57280\uff5e3A\u91cf\u7a0b\u5185\uff0c\u6307\u9488\u8bfb\u6570\u4e3a1.8A
D.\u57280\uff5e3A\u91cf\u7a0b\u5185\uff0c\u6307\u9488\u8bfb\u6570\u4e3a1.4A
\u601d\u8def\u5206\u6790
\u5f53\u91cf\u7a0b\u9009\u597d\u540e\uff0c\u6bcf\u4e00\u5927\u683c\u548c\u6bcf\u4e00\u5c0f\u683c\u7684\u8bfb\u6570\u8303\u56f4\u5c31\u786e\u5b9a\u4e86(\u6ce8\u610f\u786e\u5b9a\u91cf\u7a0b\u7684\u65b9\u6cd5)\uff0c\u5728\u75280\uff5e0.6A\u91cf\u7a0b\u65f6\uff0c\u5148\u8bfb\u51fa\u4e00\u5927\u683c\u8bfb\u65700.2A\uff0c\u518d\u52a0\u4e0a4\u5c0f\u683c\u7684\u8bfb\u6570(0.02A\u00d74)\u5c31\u662f\u51c6\u786e\u8bfb\u6570\u4e86\uff0c\u5728\u75280\uff5e3A\u91cf\u7a0b\u65f6\u7528\u540c\u6837\u7684\u65b9\u6cd5\u8bfb\u6570.
\u7b54\uff1aB\u3001D
\u4f8b14\uff1a\u5982\u56fe5-18\u6240\u793a\uff0c\u7535\u6d41\u8868\u7684\u793a\u6570\u662f( )
A.0.26A B.1.3A
C.\u53ef\u80fd\u662f0.26A\u4e5f\u53ef\u80fd\u662f1.3A D.\u4ee5\u4e0a\u90fd\u4e0d\u5bf9
\u601d\u8def\u5206\u6790
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\u7b54\uff1aC
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\u601d\u8def\u5206\u6790
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\u7b54\uff1a\u5982\u56fe5-21\u6240\u793a\u3002 (\u901a\u8fc7\u8fd9\u4e24\u4e2a\u53ef\u80fd\u800c\u5224\u65ad)
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( \u6d4b \u548c \u7535\u6d41\u7684\u548c)
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\u601d\u8def\u5206\u6790
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灯泡发光的过程就是电流做功的过程。
绛旓細鏈変袱绉嶆儏鍐典細寮曡捣杩欑鐜拌薄锛屼竴绉嶆槸寮鍏虫ц兘鍙樺樊锛寮鍏崇伅鏃锛屾湁鐏姳鍑虹幇锛屼骇鐢熼珮棰戠數纾佹尝骞叉壈锛屽彟涓涓氨鏄數瑙嗘満鎶楀共鎵版ц兘宸傛墍浠ョ數瑙灏变細鍑虹幇杩欑鎯呭喌銆寮鍏崇數鐏椂,寮鍏崇殑瑙︾偣涓婁細浜х敓灏忕殑鐢靛姬鑰屼骇鐢熺數纾佹尝,鐢佃鏈哄氨浼氭帴鏀剁數纾佹尝闈骇鐢熷共缁,鏈夋椂鎵撴墜鏈轰篃浼氬鐢佃鏈烘湁骞茬粫,
绛旓細1銆佸紑鍏虫帶鍒朵簡闆剁嚎,鐏嚎鐩存帴杩涗簡鐏叿 鏈夊彲鑳芥槸寮鍏虫帶鍒朵簡闆剁嚎鍚,鍏崇伅鍙槸灏嗗洖璺粰鏂紑,鐏嚎璺熺伅鍏疯繕鏄繛鎺ョ殑,鎵浠ョ伅鍏疯繕浼氬彂鍏,閲嶆柊鎶婄數璺繛鎺ヤ竴涓,璁╁紑鍏虫潵鎺у埗鐏嚎灏卞ソ銆 2銆佸紑鍏冲甫鎸囩ず鐏垨鑰呯敤浜嗙數瀛愬紑鍏 鏈夊彲鑳芥槸寮鍏抽噷闈甯︽湁鎸囩ず鐏,鍏崇伅鍚庢寚绀虹伅杩樺湪閫氱數,涔熶細鏈夌數娴佹祦杩囩伅鍏,杩欐椂鐏叿灏变細鍙戝厜銆 3銆佸弻鎺у紑鍏虫帴...
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