Questions
A magnet of magnetic moment ‘M’ is cut into two equal parts. The two parts are placed perpendicular to each other, so that their north poles touch each other. The resultant magnetic moment is__
a
2M
b
M2
c
3M
d
M/3
detailed solution
Correct option is B
Initial Magnetic moment M=2lm=m(2l)If the magnetic is divided into two halves perpendicularly then Magnetic Moment becomes (M/2) MR=M12+M22 MR=M22+M22MR=M22 ∴ MR=M/2.Talk to our academic expert!
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If a hole is made at the centre of a bar magnet, then its magnetic moment will
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