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

What is the magnitude of the equational and axial fields due to a bar magnet of length 8.0 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

`(i) B = (mu_(0))/(4pi) (2M)/(r ^(3)) = 10 ^(-7) xx (2 xx 0.4)/((0.5) ^(3)) = 10 ^(-7) xx (8xx 10 ^(-1))/(125 xx 10 ^(-3))`
`B = 10 ^(-8) xx 10 ^(3) xx (8)/(125) = 0.064 xx 10 ^(-6) = 6.4 xx 10 ^(-7) T`
(ii) `B = (mu _(0))/(4pi) (M)/(r ^(3)) = 10 ^(-7) xx (0.4)/((0.5)^(3)) = 3.2 xx 10 ^(-7) T`
Promotional Banner

Similar Questions

Explore conceptually related problems

What is the magnitude of the equatorial and axial fields due to a bar manget of length 5*0cm at a distance of 50cm from its mid-point? The magnetic moment of the bar magnet is 0*40Am^2 .

The magnitude of the equatorial magnetic field due to a bar magnet of length 2 cm at a distance of 1lm from its mid-point is (magnetic moment of the bar magnet is 0.60 A m)

What is the magnitude of axial field due to a bar magnet of length 3 cm at a distance of 75 cm from its mid-point if its magnetic moment is 0.6 Am?

The magnetic induction field strength due to a short bar magnet at a distance 0.20 m on the equatorial line is 20 xx 10^(-6) T . The magnetic moment of the bar magnet is

The magnetic field due to a short magnet at a point in its axis at distance X cm from the middle of the magnet is

What is the magnetic induction due to a short bar magnet of magnetic moment 0.5 Am^(2) at a point along the equator at a distance of 20 cm from the centre of the magnet?

A short bar magnet is placed along positive X-axis with its centre at origin. Calculate the magnitude of magnetic field strength at point (0,5 cm), if the magnetic moment of the bar magnet is 0.5 Am^2

A short bar magnet has a magnetic moment of 0.4 JT^(-1) The magnitude of the magnetic field (ingauss) produced by the magnet at a distance of 20 cm from the centre of the magnet on the equatorial line of the magnet is