question_answer

A magnet of magnetic moment \[50\hat{i}A-{{m}^{2}}\]is placed along the x - axis in a magnetic field\[\vec{B}=(0.5\hat{i}+3\hat{j})T\]. The torque acting on the magnet is:

A) \[175\hat{k}~\]                         

B) \[75\hat{k}\]    

C) \[150\hat{k}\]               

D) \[25\sqrt{37}\hat{k}\]