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NEET Exam Model Paper 11
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© examsnet.com
Question : 18
Total: 180
The maximum work done in rotating a bar magnet of magnetic moment M when placed in a uniform magnetic field B is
MB
– MB
2MB
Zero
Validate
Solution:
W
=
U
f
−
U
i
=
M
B
−
(
−
M
B
)
=
2
M
B
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