The emf e is induced in a coil when a magnet is moved towards the coil with a speed v. If both the magnet and the coil are moved towards each other with a speed v ,then the induced emf is nearly

1) e

2) 2e

3) 4e

4) zero

A magnent moves towards a coil. Which of the factors can affect the emf induced in the coil?

The induced e.m.f. in a coil does not depend on

The induced emf produced when a magnet is inserted into a coil does not depend upon the

A magnet is moving towards a coil along its axis and the emf induced in the coil is ε . If the coil also strats moving towards the magnet with the same speed, the induced emf will be A. ε/2 B. ε C. 2ε D. 4ε

When a loop moves towards a stationary magnet with speed v , the induced emf in the loop is E . If the magnet also moves away from the lop with the same speed, then the emf inducted in the loop is

A magnet is brought towards a coil (i) speedily (ii) slowly then the induced e.m.f.//induced charge will be respectively

The north of a bar magnet is moved towards a coil along the axis passing through the centre of the coil and perpendicular to the plane of the coil. The direction of the induced current in the coil when viewed in the direction of the motion of the magnet is

The coefficient of mutual induction between two coils is 4H. If the current in the primary reduces from 5A to zero in 10^(-3) second then the induced e.m.f in the secondary coil will be

The mutual inductance between two coils is 1.25 henry. If the current in the primary changes at the rate of 80 ampere//second , then the induced e.m.f. in the secondary is

A coil and a magnet moves with their constant speeds 5m//sec and 3m//sec . Respectively , towards each other, then induced emf in coil is 16 m V . If both are moves in same direction , then induced emf in coil :-