根据欧姆定律 I=U/R,下列说法正确的是(  )A.通过导体的电流越

根据欧姆定律 I=U/R,下列说法正确的是(  )

A.通过导体的电流越大,这段导体的电阻就越小 

B. 导体两端的电压越高,这段导体的电阻就越大  

C. 导体的电阻与电压成正比,与电流成反比  

D. 导体两端的电压越高,通过这段导体中的电流就越大

 

答案

D

解析:略

 

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