新版输气工（初级

ADOOS将一只标有“ 12V ,6W” 的灯泡与一电阻串联后接到电压为 12V 的电源上 , 电阻消耗的功率为 lW( 灯丝电阻视作不变) ,则此时() 。

发布于 2021-04-19 22:41:45

【单选题】
A 灯泡消耗的功率小于 SW
B 灯泡与电阻消耗的总功率为 7W
C 灯泡与电阻消耗的总功率为 6W
D 灯泡消耗的功率大于 SW

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matahu 2023-04-19

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