The pole stregth potential at a point du...

The pole stregth potential at a point due to a short magnetic dipole of moment 5 `Am^(2)` at a distance of 2m from its centre on a line making an angle of`30^(@)` with it is

A

40AM

B

50 Am

C

60 Am

D

70 Am

Text Solution

Verified by Experts

The correct Answer is:

B

`2l=(5)/(6)xx"geometric length"=(5)/(6)xx12=10cm`
`m=(M)/(2l)=(5)/(0.1)=50 Am`

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