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In which of the following cases e.m.f. is induced? (i) A current is started in a wire held near a loop of wire. (ii) The current is switched off in a wire held near a loop of wire. (iii) A magnet is moved through a loop of wire. (iv) A loop of wire is held near a magnet. |
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Answer» In which of the following cases e.m.f. is induced? (ii) The current is switched off in a wire held near a loop of wire. (iii) A magnet is moved through a loop of wire. (iv) A loop of wire is held near a magnet. |
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