When primary coil P is moved towards secondary coil S, Fig. the galvanometer shows memetary deflection in the can be done to have larger deflection in the galvanometer with same battery ? State the related law ?

Explanation

(i) To get the larger deflection in the galvanometer with the same battery, the coil P should be moved faster.
(ii) The related law is electromagnetic induction. It is the process in which an emf is induced in a circuit placed in a magnetic field when the magnetic flux linked with the circuit changes.