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Three identical bar magnets each of magn...

Three identical bar magnets each of magnetic moment `M` are arranged in the form of an equilanteral triangle such that at two vetices like poles are in contact. The resultant magnetic moment will be

A

Zero

B

`2M`

C

`sqrt2M`

D

`Msqrt3`

Text Solution

Verified by Experts

The correct Answer is:
B
`M_(R )=sqrt(M_(1)^(2)+M_(2)^(2)+2M_(1)M_(2)0costheta)`
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