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The adjoining figure shows two different...

The adjoining figure shows two different arrangements in which two square wire frames of same resistance are placed in a uniform constantly decreasing magnetic field B.

The direction of induced current in the case I is

A

from a to `b` and from `c` to `d`

B

from a to `b` and from `f` to `e`

C

from `b` to `a` and from `d` to `c`

D

from `b` to `a` and from `e` to `f`

Text Solution

Verified by Experts

The correct Answer is:
C
Case I, `I=1/R(dphi)/(dt)=((L^(2)+l^(2)))/R(dB)/(dt)`
Since B is decreasing so `B_(induce)` will be `ox` therefore option `C` is correct.
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