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感应电流具有这样的方向,即感应电流的磁场总要阻碍引起感应电流磁通量的变化,称之为楞次定律.该定律的内涵广泛,表现的形式灵活多样,巧妙应用它,可解决五类问题.
The induction current has such a direction that the magnetic field of the induction current always impedes the change of the induced magnetic flux, which is called Lenz’s law.The connotation of the law is broad and the form of the expression is flexible and diversified. The clever application of it can solve five kinds of problems .