Two bar magnets of magnetic moments `12Am^(2)` and `10Am^(2)` are placed one over the other .First with their similar poles in contact after unlike po
Two bar magnets of magnetic moments `12Am^(2)` and `10Am^(2)` are placed one over the other .First with their similar poles in contact after unlike poles in contact.The ratio of their resultant magnetic moments is
A. `5:6`
B. `6:5`
C. `11:1`
D. `10:12`
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Correct Answer - C
`M_(1)=12 Am^(2),M_(2)=10 Am^(2),(M_(s))/(M_(d))=?`
`(M_(s))/(M_(d))=(M_(1)+M_(2))/(M_(1)-M_(2))=(22)/(2)=(11)/(1)`
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