Metallic wire 1m in length is moving normally across a field of 0.1 T with a speed of `5 ms^-1`. Find the e.m.f between the ends of the wire.

A train is moving in the north-south direction with a speed of 108 kmh^(-1) . Find the e.m.f. generated between two wheels, if the length of the axle is 2m. Assume that the vertical component of earth's field is 8.0 xx 10^(-5) Wbm^(-2) .

A metallic wire bent in the form of a semicircle of raidus 0.1 m is moved into magnetic field of 20 mT in a direction parallel to its plane, but perpendicular to the magnetic field with a velocity of 10 ms^-1 . Find the e.m.f. induced in the wire.

If a 10 m long metallic bar moves in a direction at right angle to the magnetic field with a speed of 5.0 m s^-1 25 V e.m.f. is induced in it. Find the value of magnetic field intensity.

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , Which end of the wire is at the higher electrical potential?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , What is the instantaneous value of the emf induced in the wire?

A metal disc of radius 200 cm is rotated at a constant angular speed of 60 rad s^-1 in a plane at right angles to an external field of magnetic induction 0.05 Wb m^-1 . Find the e.m.f. induced between the centre and a point on the rim.

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , What is the direction of the emf?

A wire is cut across a flux of 0.2x10(-2) weber in 0.12 seconds. What is the e.m.f. induced in the wire ?