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Two circular coils P & Q are coaxially &...

Two circular coils P & Q are coaxially & carry currents `I_1` and `I_2` respectively (all direction are w.r.t. the observer)

A

If `I_(2)=0&P` moves towards `Q,a` current in the samedirection as `I_(1)` is induced in `Q`

B

If `I_(1)=0&Q` moves towards `P,a` current in the opposite direction to that of `I_(2)` insinduced in `P`.

C

When `I_(1)!=0` and `I_(2)!=0` are in the same direction then the two coils tend to move apart.

D

When `I_(1)!=0` and `I_(2)!=0` are in opposite directions then the coils tends to move apart.

Text Solution

Verified by Experts

The correct Answer is:
B, D
Due to induction effect current will be in opposite direction.
No induction effect but due to force one current carrying wire they will repel when current in them in opposite direction.
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