Electromagnetic...

The total charge induced in a conducting loop when it is moved in magnetic field depends on

A rectangular coil of 20 turns and area of cross-section 25 sq cm has a resistance of 100 ohm. If a magnetic field which is perpendicular to the plane of the coil changes at the rate of 1000 tesla per second, the current in the coil is

If a coil of metal wire is kept stationary in anon-uniform magnetic field, then

The magnetic flux linked with a coil, in webers, is given by the equations ϕ = 3 t² + 4t + 9. Then the magnitude of induced e.m.f. at t = 2 second will be

A coil has an area of 0.05 m² and it has 800 turns. It is placed perpendicularly in a magnetic field of strength 4 × 10^–5Wb/m², it is rotated through 90° in 0.1 sec. The average e.m.f. induced in the coil is

Whenever a magnet is moved either towards or away from a conducting coil, an e.m.f. is induced, the magnitude of which is independent of

Induced potential in a coil is developed by change of magnetic flux from 1 wb to 0.1 wb in 0.1 second is

If a copper ring is moved quickly towards south pole of a powerful stationary bar magnet, then

In a magnetic field of 0.05 T, area of a coil changes from 101 cm² to 100 cm² without changing the resistance which is 2 Ω. The amount of charge that flow duringthis period is

A square loop of wire, side length 10 cm is placed at angle of 45° with a magnetic field that changes uniformly from 0.1 T to zero in 0.7 seconds. The induced current in the loop (its resistance is 1 Ω) is