Explain Lenz's Law

Answer 1

Lenz's Law is a principle in electromagnetism which states that the direction of an induced electromotive force (emf) in a circuit is such that it opposes the change in current that caused it. In other words, when there is a change in magnetic field within a conducting loop, an induced current will flow in the loop that creates a magnetic field which opposes the change in the original magnetic field.

This law is based on the conservation of energy principle, as the induced current will create a magnetic field that works against the original change in the magnetic field. This phenomenon is used in devices such as generators, transformers, and other electromagnetic devices.

In summary, Lenz's Law states that the induced current created by a changing magnetic field will always flow in a direction that opposes the change in the magnetic field that caused it.