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若把磁铁竖直插入 带有缺口(使金属环断开)的金属环中 ,则环中 _____。

单选题
2021-09-01 19:28
A、产生感应电动势,也产生感应电流
B、产生感应电动势,不产生感应电流
C、不产生感应电动势,也不产生感应电流
D、不产生感应电动势,产生感应电流
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正确答案
B

试题解析

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若把磁铁竖直插入 带有缺口(使金属环断开)的金属环中 ,则环中 _____。
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