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  3. A circular loop of radius R carrying current I lies in x-y plane with its centre at origin. The total magnetic flux through x-y plane is

. A circular loop of radius R carrying current I lies in x-y plane with its centre at origin. The total magnetic flux through x-y plane is

A. Directly proportional to I                           B. Directly proportional to R

C. Directly proportional to                        D. Zero 

 

Best Answer

(d)

Circular loop behaves as a magnetic dipole whose one surface will be N-pole and another will be S-pole. Therefore magnetic lines a force emerges from N will meet at S. Hence total magnetic flux through x-y plane is zero.

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