Describe Lenz s law and its role in electromagn... - SS1 Physics Magnetism and Electromagnetism Question

Lenz's law is a fundamental principle in electromagnetic induction formulated by Heinrich Lenz. According to Lenz's law, the direction of the induced current in a conductor is such that it opposes the change that caused it. In other words, when a changing magnetic field induces an emf in a conductor, the resulting current creates a magnetic field that opposes the original change in the magnetic field. 

This law is based on the principle of conservation of energy. By opposing the change, Lenz's law ensures that the work done by the induced current to create the opposing magnetic field is in accordance with the principle of energy conservation. Lenz's law plays a crucial role in understanding the behaviour of induced currents and helps explain phenomena such as the generation of back emf in electric motors and the self-induction in coils.