In which of the following cases does the electromagnetic induction occur? (i) A current is started in a
In which of the following cases does the electromagnetic induction occur?
(i) A current is started in a wire held near a loop of wire
(ii) The current is stopped 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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