A horizontal straight wire 10 m long extending from east to west is falling with a speed of `5.0ms^-1` at right angles to the horizontal component of the earth's magnetic field, `0.30xx10^-4Wb m^-2`
What is the instantaneous value of the emf induced in the wire?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth's magnetic field, 0.30xx10^-4Wb m^-2 What is the direction of the emf?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth's magnetic field, 0.30xx10^-4Wb m^-2 Which end of the wire is at the higher electrical potential?

A horizontal wire 20 m long extending from east to west is falling with a velocity of 10 m/s normal to the Earth s magnetic field of 0.5 xx 10^-4 T . What is the value of induced emf in the wire?

The horizontal telegraph wire 100m long,oriented along magnetic east west falls freely under gravity to the ground with a speed of 20 cm/s. The horizontal component of earth's magnetic field is 4.0 xx 10^-5 tesla. Find the e.m.f. induced in the wire at the instant the wire strikes the ground.

A metergauge train runs northwards with a constant speed of 22 m/s on a horizontal track.The vertical component of the earth's magnetic field at that place is 3 xx 10^-4 T . the emf induced in its axle is

In the magnetic meridian of a certain place, the horizontal component of earth magnetic field is 0.26 xx 10^-4 T and dip angle is 60^@ , what is the magnetic field of the earth at this location?

A meter gauge train is running towards north with speed of 20 m/s .The vertical component of earth's magnetic field is 3 xx 10^_4 (Wb)/m^2 . Calculate the e.m.f. induced at the end of the axle.

At a given place on the earth a bar magnet of magnetic moment vec(m) is kept horizontal in the East-West direction. P and Q are the two neutral points due to magnetic field of this magnet and vec(B_H) is the horizontal component of the Earth's magnetic field. Calculate the angles between position vectors of P and Q with the direction of vec(m)

The angle of dip at a place is 37^(@) and the vertical component of the earth's magnetic field is 1.6xx 10^(-5)T. The earth's magnetic field at this place is (tan 37^@=3/4)