Question

When the N-pole moves towards the coil, what happens to the flux and galvanometer?

Options

• Flux decreases; the galvanometer shows no deflection.

• Flux does not change; the galvanometer deflects.

• Flux decreases; the galvanometer deflects in the opposite direction.

• Flux increases; the galvanometer deflects.

Answer 1

An approaching N-pole increases magnetic flux through the coil. The changing flux induces a current, so the galvanometer deflects.