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Assertion : A square loop is placed in x...

Assertion : A square loop is placed in x-y plane as shown in figure. Magnetic field in the region is` B =- B_0x hatk`. The induced current in the loop is anti-clockwise.

Reason : If inward magnetic field from such a loop increases, then current should be anti-clockwise.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Due to non uniform magnetic field (a function of `x`) magnetic flux passing through the loop obtained by integration. But that remains constant with time
Hence,` (dphi)/(dt)=0`
`or e=0`
Magnetic field is along `-hatk` direction or in `ox` magnetic is increasing. Hence, induced current should produce `o.` magnetic field. Or induced curent shoud be anti cloclwise.
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