如图所示，理想变压器原副线圈匝数比5：1，原线圈两端接在输出电压u=311sin100πt（V）的交流电源上，电流表和电压表对电路的影响忽略不计，电阻R=﹣44Ω，下列说法正确的是_刷题宝

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如图所示，理想变压器原副线圈匝数比5：1，原线圈两端接在输出电压u=311sin100πt（V）的交流电源上，电流表和电压表对电路的影响忽略不计，电阻R=﹣44Ω，下列说法正确的是（　　）

A：R上交流电的频率为100Hz

B：电流表A₁的示数为0.2A

C：电压表V₁的示数为311V

D：电阻R的发热功率为88W

上一题下一题 0.0难度选择题更新时间:2016-11-16 05:57:24

答案(点此获取答案解析）

B

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