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A small square loop of n(1) turns and si...

A small square loop of `n_(1)` turns and side l is placed at the centre of a large coplanar, circular loop of radius r( r gt gt l) and `n_(2)` tuns. The mutual inductacne of the combination is

A

`(mu_(0)n_(1)n_(2)pir^(2))/(l)`

B

`(mu_(0)n_(1)n_(2)l^(2))/(2r)`

C

`(mu_(0)n_(2)^(2)l^(2))/(2r)`

D

`(mu_(0)n_(1)^(2)l)/(2r)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Two concentric co - planar circular loops of radius R and r (lt lt R) are placed as shown in the figure. The mutual inductance of the system will be

    A
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