Question

The following diagram in Fig.10.42 shows a coil of several turns of copper wire connected to a sensitive centre zero galvanometer G near a magnet NS. The coil is free to move in the direction shown in the diagram.

(i) Describe the observation if the coil is rapidly moved.
(ii) How would the observation be altered if (a) the coil has twice as many turns (b the coil was made to move three times as fast?

Answer 1

(i)The pointer of galvanometer deflects. The deflection last so long as the coil moves.
(ii) (a) Deflection becomes twice.
(b) Deflection becomes thrice