家庭电路中,电路上总电阻和总功率的情况是( )     A.亮着的灯

家庭电路中,电路上总电阻和总功率的情况是(  )

    A.亮着的灯越多,总电阻越大,总功率越大    B.亮着的灯越多,总电阻越小,总功率越小

    C.亮着的灯越多,总电阻越小,总功率越大    D.亮着的灯越多,总电阻越大,总功率越小

答案

C

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