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Two circular loops P and Q are concentri...

Two circular loops `P` and `Q` are concentric and coplanar as shown in figure. The loop `Q` is smaller than. `P`. If the current `I_1` flowing `i` loop `P` is decreasing with time, then the curren `I_2` in the loop `Q`

A

flows in the same direction as that of `P`

B

flows in the opposite direction as that of `Q`

C

is zero

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
A
Magnetic field through `Q` (by `I_2)` is downwards. By decreasing `I_1`, downward magnetic field through `Q` will decrease. Hence, induced current in `Q` should produce magnetic field in same
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