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A square conducting loop of side L is si...

A square conducting loop of side `L` is situated in gravity free space. A small conducting circular loop of redius `r (rlt lt L)` is placed at the center of the square loop, with its plane perpendicular to the plane of the square loop. The mutual inductance of the two coils is

A

`(2sqrt(2)mu_(0)I)/(L)r^(2)`

B

`(sqrt(2)mu_(0)I_(0))/(L)r^(2)`

C

`0`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
The magnetic field produced by the square loop is parallel to the plane of the circular loop. Hence the mutual inductance is zero.
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