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Following figures show the arrangement o...

Following figures show the arrangement of bar magnets in different configurations. Each magnet has magnetic dipole moment M. Which configuration has highest net magnetic dipole moment ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
`(a) M_(1)=msqrt2 `
`(b) underset(m)overset(m)(hArr) Rightarrow M_(2)=0`
`(c) M_(3)=msqrt((1+cos 30^(@))2)`
`" " msqrt((1+(sqrt3)/(2)))2=msqrt(2+sqrt3)`
`(d) " " M_(4)=2m cos30^(@)=msqrt3`
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