Lenz's law is a direct consequence of conservation of:

Electromagnetic braking in trains uses eddy currents to dissipate kinetic energy.

Eddy current losses in a transformer core are reduced by:

Energy stored in an inductor of inductance $L$ carrying current $I$ is:

The SI unit of self-inductance is:

A 0.5 m conducting rod moves at 4 m/s perpendicular to a 2 T field. EMF induced (in V):