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Question

The diagram shows a fixed coil of several turns connected to a centre zero galvanometer G and a magnet NS which can move in the direction shown in the diagram.

(a) Describe the observation in the galvanometer if (i) the magnet is moved rapidly, (ii) the magnet is kept stationary after it has moved into the coil, (iii) the magnet is then rapidly pulled out of the coil.

(b) How would the observation in (i) of part (a) change if a more powerful magnet is used?


Solution

(a) (i) The pointer of galvanometer deflects towards the right. 

(ii) There will be no deflection in the galvanometer as there is no change in flux.

(iii) The pointer of galvanometer deflects towards the left. 

(b) The magnitude of deflection will increase.


Physics
Concise Physics
Standard X

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