Fewpal
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In the arrangement shown in Figure 13.4 there are two coils wound on a non-conducting cylindrical rod.
Initially the key is not inserted. Then the key is inserted and later removed. Then
(a) the deflection in the galvanometer remains zero throughout
(b) there is a momentary deflection in the galvanometer but it dies out shortly and there is no effect when the key is removed

(c) there are momentary galvanometer deflections that die out shortly; the deflections are in the same direction
(d) there are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions

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(d) there are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions

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