A circular coil of radius $30\; cm$ and resistance $\pi^{2}\;Ohms$ is rotating in a uniform magnetic field $B=10^{-2}$. Axis of rotation is diameter of coil which is perpendicular to direction of B. If Coil rotates with $200\;rpm$ the current induced in coil is

Question

$(a)\;30\;mA \\ (b)\;6 \pi^2 mA \\(c)\;6 \;mA \\(d)\;30 \pi ^2 mA $