Question: A circular loop of wire, with radius R, lies in the xy plane, centered at the origin. and carries a current 1 running counterclockwise as

A circular loop of wire, with radius R, lies in the xy plane, centered at the origin. and carries a current 1 running counterclockwise as viewed from the positive z axis.

(a) What is its magnetic dipole moment?

(b) What is the (approximate) magnetic field at points far from the origin?

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