Question

What changes when either a coil or a nearby magnet is moved so that their relative position changes?

Options

• The principle of conservation of energy

• The unit of magnetic flux from weber to volts

• The number of magnetic flux lines through the coil

• The number of turns in the coil necessarily

Answer 1

Changing the relative position of the magnet and coil changes the magnetic flux through the coil. A changing flux can set up an induced emf.