你们又多少人知道楞次定律？
所以楞次定律说它会尽可能地，保持内部没有磁场。
So Lenz's law says it's going to do whatever it can so that it retains no field inside.
楞次定律指出感生电流所流动的方向，是要对抗产生的电流改变。
Lenz's law states that the induced current flows in a direction such that it opposes the change producing it.
使用铝板非常重要，因为这是一个意思，为扭转楞次定律的效果。
The use of aluminum sheet is very important, because this is a mean for reversing the Lenz law effect.
楞次定律是电磁学教学中的难点。针对这一问题讨论了楞次定律的教法。
The teaching of the Lenz's law is a difficult point in electromagnetics teaching . The pedagogy inquiry of the Lenz's law is discussed in connection with this problem.
楞次定律是电磁学教学中的难点。针对这一问题讨论了楞次定律的教法。
The teaching of the Lenz's law is a difficult point in electromagnetics teaching . The pedagogy inquiry of the Lenz's law is discussed in connection with this problem.
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