四个一千欧姆电阻并联是多少 问题:4个1欧姆电阻并联是多
4\u4e2a1K\u7684\u7535\u963b\u5e76\u8054\u662f\u591a\u5c11\u6b27\u5440\uff1f\u8981\u662f\u963b\u503c\u4e0d\u4e00\u6837\u7684\u51e0\u4e2a\u7535\u963b\u5e76\u8054\u540e\u7684\uff0c\u7535\u963b\u662f\u591a\u5c11\uff1f\u548b\u8ba1\u7b97\u54624\u4e2a1K\u7684\u7535\u963b\u5e76\u8054\u662f\uff1a1k/4\uff1d250\u6b27\u59c6\uff1b\u5982\u679c\u5404\u4e2a\u7535\u963b\u963b\u503c\u4e3aR1\u3001R2\u3001R3\u2026\u2026\uff0c\u5e76\u8054\u540e\u963b\u503c\u4e3aR\uff0cR\u4e0eR1\u3001R2\u3001R3\u2026\u2026\u6709\u4e0b\u5217\u5173\u7cfb\uff1a1/R\uff1d1/R1+1/R2+1/R3\u2026\u2026\uff1b\u5373\u5e76\u8054\u540e\u963b\u503c\u7684\u5012\u6570\u7b49\u4e8e\u5404\u4e2a\u7535\u963b\u963b\u503c\u7684\u5012\u6570\u7684\u548c
\u6839\u636e\u76f8\u540c\u7535\u963b\u5e76\u8054\uff0c\u603b\u7535\u963b=\u5176\u4e2d\u4e00\u7535\u963b\u7684n\u5206\u4e4b\u4e00\uff0c4\u4e2a1\u6b27\u59c6\u7535\u963b\u5e76\u8054\uff0c\u603b\u7535\u963b=1\u6b27\u59c6\u76844\u5206\u4e4b\u4e00\uff0cR=1/4\u6b27\u59c6\u3002
相同电阻值的电阻并联,等效电阻最好算。两个并联,阻值等于除以2;4个并联阻值等于除以4.所以4个1000欧姆电阻并联,阻值除以4.等于250欧姆。
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