The magnetic field strength at a point a...

The magnetic field strength at a point a distance `'d'` form the centre on the axial line of a very short bar magnet of magnetic moment `'M'` is `'B'`. Then magnetic induction at a diatance `2d` from the centre on the equatorial line of a magnetic moment `8M` will be

`4B`

`B//2`

`B//4`

`2B`

Text Solution

Verified by Experts

The correct Answer is:

`B_(H)=(mu_(0))/(4pid^(3)),B_(e)=(mu_(0)M)/(4pid^(3))`

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