Question

In what sense does Lenz's law behave like electromagnetic inertia?

Options

• An electromagnetic circuit maintains an induced current in every steady field.

• An electromagnetic circuit always resists its own motion.

• An electromagnetic circuit resists the existence of magnetic flux.

• An electromagnetic circuit resists changes in its magnetic flux.

Answer 1

Electromagnetic inertia means the circuit resists changes in magnetic flux. The comparison is to Newton's first law, under which a body resists changes in its state of motion.