Home
Class 12
PHYSICS
A metergauge train runs northwards with ...

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

`6.6mV`

B

`5.5mV`

C

`4.5mV`

D

`4.4mV`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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 magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian, has its north tip pointing down at 21^@ 48^1 with the horizontal. If the horizontal component of the earth's magnetic induction at that place is 3.5 xx 10^-5 T, determine the earth's magnetic induction at that place.

At a particular place, horizontal and vertical components of earth's magnetic field are equal. The angle of dip at that place is…………… .

The horizontal component of the earth's magnetic field is 0.22 Gauss and total magnetic field is 0.4 Gauss. The angle of dip. Is

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 short bar magnet has magnetic moment 20 Am^2 . The axis of the magnet is in the magnetic meridian with the south pole pointing north. The horizontal component of earth's magnetic field at that place is 3 xx 10^-5 T. Find the point on the axis of the magnet at which the resultant magnetic field is zero, [such a point is called a neutral point].

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)

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?

At certain place, the horizontal component of earth's magnetic field is 3.0G and the angle dip at the place is 30^(@) . The magnetic field of earth at that location

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?