Home
Class 12
PHYSICS
What is the magnitude of the equatorial ...

What is the magnitude of the equatorial and axtal feilds due to a bar magnet of length 5.0 cm at a distance of 50 cm from its mid-point? The magnetic moment of the bar magnet is `0.40 A m^2`

Text Solution

Verified by Experts

From Eq (5.7)
`B_(E)=(mu_(0)m)/(4pi r^(2))=(10^(-7) xx 0.4)/((0.5)^(3))=(10^(-7) xx 0.4)/(0.125) =3.2 xx 10^(-7)T`
From Eq. (5.8) `B_(A)=(mu_(0)2m)/(4pi r^(3))=6.4 xx 10^(-7)T`
Promotional Banner

Similar Questions

Explore conceptually related problems

Magnetic field due to a bar magnet 2 cm long having a pole strength of 100 Am at a point 10 cm from each pole is

A short bar magnet has a magnetic moment of 0.48 JT^(-1) . Give the direction and magnitude of the magnetic field produced by the magnet at a distance of 10 cm from the centre of the magnet on (a) the axis, (b) the equatorial lines (normal bisector) of the magnet.

Three similar bar magnets are placed to form an equilateral triangle as shown in the figure . The magnetic moment of each magnet is M . What is the magnetic moment of the system ?

What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30^@ with the direction of a uniform magnetic field of 0.15 T?