Due to the flow of current in a circular loop of radius R, the magnetic induction produced at the centre of the loop is B. The magnetic moment of the loop is \[({{\mu }_{0}}=\text{permeability}\,\text{constant)}\] [MP PET 2000]

• A.            \[B{{R}^{3}}/2\pi {{\mu }_{0}}\]                                      
• B.            \[2\pi B{{R}^{3}}/{{\mu }_{0}}\]
• C.            \[B{{R}^{2}}/2\pi {{\mu }_{0}}\]                                      
• D.            \[2\pi B{{R}^{2}}/{{\mu }_{0}}\]