The magnetic flux through a coil perpendicular to its plane and directed into the paper is varying according to the relation, `phi=(2t^3- t^2- 3t+ 5)` Wb. Calculate the e.m.f. induced in the coil at t = 2s.

The magnetic flux through a coil perpendicular to its plane and directed into the paper is varying according to the relation, phi= (3t^3+2t^2 +4t+6) Wb. Calculate the e.m.f. induced in the coil at t = 2s.

The magnetic flux through a coil perpendicular to its plane and directed into the paper is varying according to the equation phi = (2t^3 -6t^2-t + 8) Wb. Calculate the e.m.f. induced in the coil at t = 3s.

The magnetic flux through a coil perpendicular to its plane and directed into paper is varying according to the relation phi = (5 t^(2) + 10 t + 5) milliweber. Calculate the e.m.f. induced in the loop at t = 2s, if the resistance of the coil is 5 ohm.

The magnetic flux through a coil perpendicular to its plane is varying according to the relation phi = (4 t^3 + 5 t^2 + 8 t + 5) weber Calculate the induced current through the coil at t = 2 s. if the resistance of the coil is 3.1 ohm.