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Two identical circular coils A and B are...

Two identical circular coils A and B are placed parallel to each other with their centres on the same axis. The coil B carries current in the clockwise direction as seen from A. What would be the directions of the induced current in A as seen from B when
the current in B is increased

Text Solution

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If the current in coil B is increased, a current will be induced in coil A and according to Lenz's law, its direction will be such that, it will oppose the increase of current in coil B. Hence the direction of induced current in coil A will be opposite to the direction of current in coil B. So, when looked from coil B, the current in coil A will be clockwise.
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