物理教科书/楞次定律

楞次定律用于查找因感应电动势引起的电流的流动方向

它指出“电流的方向始终与其产生的原因相反”。

楞次定律也用于解释能量守恒定律。

              When a magnet moves towards and away from the coil induce an e.m.f in it by change the flux linked of magnet and feeble current flows in the coil. Due to this magnetic field is produced which opposes the approaching movement of magnet. In this a work is done. At last the amount of work done is converted into heat energy which recycles the lenz's law. Hence lenz's law is also called law of conservation of energy.