为什么相等电阻的灯泡流过的电流一样在并联中
人气：120 ℃ 时间：2019-10-19 15:48:59
解答
因为并联电路各支路的电压相等,又因为电阻也相等,
根据电流公式I=U/R可得电流也相等.
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