What is Lenz’s Law? Lenz’s law states that The induced electromotive force with different polarities induces a current whose magnetic field opposes the change in magnetic flux through the loop in order to ensure that the original flux is maintained through the loop when current flows in it.

Lenz’s Law states that the induced e.m.f. will be directed such that the current which it causes to flow opposes the change that is producing it. The induced e.m.f. is always present even when the conductor is not in a complete circuit. BUT there will only be an induced current flowing only if the set-up is in a complete circuit. Example: