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Two small magnets each of magnetic mome...

Two small magnets each of magnetic moment `M_(0)` is placed parallel to each other the magnetic field at point O is

A

`zero `

B

`4xx10^(-4)`N

C

`2xx10^(-4)` N

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Mag field at point on equitorial line for a short dipole
`B=(mu_(0)M_(0))/(4pir^(3))`

`B_(1)=B_(2)=(mu_(0)M_(0))/(4pir^(3))`
`therefore B=B_(1)-B_(2)=0`
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