Calculate the value of induced emf between the ends of an axle of a railway carriage 1.75 m long travelling on a level ground with a uniform velocity of `50 Km//hr`. The vertical component of Earth's magnetic field `(B_v)` is given to be `5 xx10^-5T`.

The axle of a railway engine is of length 1.5m . Calculate the e.m.f. that exists between the ends of the axle if the engine moves with a speed of 60 km/hr. The angle of dip (phi)= 45^@ and horizontal component of earth's magnetic induction is 3.6 xx 10^-5 Wb//m^2 .

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.

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

A conductor of length 0.3 m moves with a uniform velocity of 10 m//s at right angles to the magnetic field of induction 0.5 xx 10^-4 Wb//m^2 . Calculate the e.m.f. induced in it.

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?

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?

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.

Calculate the value of magnetic field at a distance of 2 cm from a very long straight wire carrying a current of 5A. Given mu_0 = 4pi xx 10^-7 Wb//Am

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)