List of top Physics Questions on Faradays laws of induction asked in AIIMS

The magnetic flux linked with the coil varies with time as $\phi = 3t^2+4t+9$.The magnitude of the induced emf of $2s$ is

The magnetic flux linked with a coil, in webers, is given by the equation: $\phi=5 t^{2}+3 t+16$. The induced e.m.f. in the coil in the fourth second will be