A uniform conducting wire of length $12a$ and resistance R is wound up as a current carrying coil in the shape of an equilateral a regular hexagon of side a .The coil is connected to a voltage source of $V_0$ Find the magnetic moment of the coil .

Question

$\begin{array}{1 1} \sqrt 3 a^2 I \\ 3a^2I \\ 3 \sqrt 3 a I \\ 3 \sqrt 3 a^2 I \end{array}$