A current circular loop of radius R is placed in

Question:

A current circular loop of radius R is placed in the x-y plane with centre at the origin. Half of the lop with x > 0 is now bent so that it now lies in the y-z plane.

(a) the magnitude of magnetic moment now diminishes

(b) the magnetic moment does not change

(c) the magnitude of B at (0,0,z),z >> R increases

(d) the magnitude of B at (0,0,z),z >> R is unchanged

Solution:

(a) the magnitude of magnetic moment now diminishes

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