Question

Write the expression for the magnetic moment (m) due to a planar square loop of side l carrrying a steady current I in a vector form .In the given figure ,this loop is placed in a horizontal plane near a long straight conductor carrying a steady current I1 at a distance l as shown.Give reasons to explain that the loop will experience a net force but no torque.write an expression for this force acting on the loop.

Answer 1

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