The magnetic flux through a coil varies with time as `phi=5t^2+6t+9` The ratio of emf at t = 3 s to t = 0 s will be

The magnetic flux through a coil varies with time as phi=5t^2-6t+9. The ratio of E.M.F. at t=0s" to "t=0.5s will be

The magnetic flux through a coil varies with time as phi=5t-6t+9. The ratio of E.M.F. at t=0s" to "t=0.5s will be

The magnetic flux through a coll is phi= (5t^2+6t+9) Wb. Find the ratio of emf at t=3 s to t=0 s.

The magnetic flux linked with a coil varies with time as phi=3t^(2)+4t+9 webers. The induced emf at t=2s is

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

The magnetic flux through a coil varies with time t as follows: phi_(t) = (8t^(3) - 6t^(2) + t - 5) Wb What is the induced current through the coil at t = 4 s, given that the resistance of the coil is 10 Omega and the magnetic flux through the coil is perpendicular to its plane?