一个共有10匝的闭合矩形线圈，总电阻为10Ω，置于水平面上。若线圈

一个共有10匝的闭合矩形线圈，总电阻为10Ω，置于水平面上。若线圈内的磁通量在0.02s内，由垂直纸面向里，从0.02wb均匀增加到0.06wb，则在此时间内，线圈内导线的感应电流大小为_________A。

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一个共有10匝的闭合矩形线圈，总电阻为10Ω，置于水平面上。若线圈

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