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The resultant magnetic moment for the fo...

The resultant magnetic moment for the following arrangement is

A

M

B

2M

C

3M

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
`M'=sqrt(M_(1)^(2)+M_(2)^(2))`
NOw `M_(2)=sqrt(M^(2)+M^(2)+2M^(2)cos60)`
`M_(2)=sqrt(3)M`
`therefore M'=sqrt(M^(2)+3M^(2))=sqrt(4M^(2))=2M`
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