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Class 12 NEET Physics Magnetism and Matter Questions
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© examsnet.com
Question : 1
Total: 50
The magnetic potential energy, when a magnetic bar of magnetic moment
→
m
is placed perpendicular to the magnetic field
→
B
is
[NEET 2024 Re]
−
m
B
2
Zero
−
m
B
m
B
Validate
Solution:
Potential energy stored in external magnetic field is given by
U
=
−
→
m
⋅
→
B
∵
Angle between
→
m
and
→
B
is
90
∘
∴
U
=
−
m
B
cos
90
∘
=
0
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