在交流电路中，交流电源电动势的有效值不变，频率可以改变，在图示电路的电键闭合时，使交流电源的频率减小，可以观察到下列论述的哪种情况 ( )_刷题宝

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在交流电路中，交流电源电动势的有效值不变，频率可以改变，在图示电路的电键闭合时，使交流电源的频率减小，可以观察到下列论述的哪种情况 ( )

A：A₁、A₂、A₃的读数均不变

B：A₁的读数不变，A₂的读数增大，A₃的读数减小

C：A₁的读数增大，A₂的读数不变，A₃的读数减小

D：A₁的读数减小，A₂的读数不变，A₃的读数增大

上一题下一题 0.0难度选择题更新时间:2014-09-29 02:47:14

答案(点此获取答案解析）

D

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