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Two straight and parallel wires A and B ...

Two straight and parallel wires A and B are being brought towards each other. If current in A be i. what will be the direction of induced current in B? If A and B are being taken away from each other, then ?

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In the first case, induced current in B will be opposite to i. so that A and B repel eachother and the operation of bringing them closer is opposed. Similarly, in the second case, induced current in B will be in the direction of i.
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