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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