$(15$pts$)$ A current loop of $17$mA is maintained in a single circular loop of $0\mathrm{.}2-$m circumfrence. An external magnetic field of $0\mathrm{.}8$ T is directed parallel to the plane of the loop.

a$.$ Calculate the magnetic moment of the current loop

b$.$ What is the magnitude of the torque exerted on the loop by the magnetic field?

c$.$ How can one increase the torque of this set$-$up while maintaining the same current and magnitic field strangth?