题目内容

两个电阻值为 R 的等值电阻并联,其等效电阻(即总电阻)等于() 。
A 0.5R
B 1.5R
C 2R

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在电路中,将两个及以上的电阻的一端全部联接在一点上,而另一端全部连接在另一点上,这样的联接称为电阻的() 。
A 并联
B 串联
C 混联

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