Q 52. A circular coil of radius 10 cm and 100 turns carries a current 1A. What is the magnetic moment of the coil?

$$\begin{gathered} \left(1\right) 3.142 \times {10}^4 A m^2 \left(2\right) {10}^4 A m^2 \\ \left(3\right) 3.142 A m^2 \left(4\right) 3 A m^2 \end{gathered}$$