NCERT Solution
Class 12
Physics
Magnetism and Matter
a short bar magnet placed with its axis at 30 ordm...

Question:
A short bar magnet placed with its axis at 30º with a uniform externalmagnetic field of 0.25 T experiences a torque of magnitude equal to 4.5 x 10^-2J. What is the magnitude of magnetic moment of the magnet?

Answer:

Magnetic field strength, B= 0.25 T

Torque on the bar magnet, T= 4.5 ×10^-2J

Angle between the bar magnet and the external magnetic field,θ= 30°

Torque is related to magnetic moment (M) as:

T= MB sin θ

Hence, the magnetic moment of the magnet is 0.36 J T^-1.

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Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

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Answered by Ekta Mehta
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Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

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Question:
A short bar magnet placed with its axis at 30º with a uniform externalmagnetic field of 0.25 T experiences a torque of magnitude equal to 4.5 x 10^-2J. What is the magnitude of magnetic moment of the magnet?

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Question: A short bar magnet placed with its axis at 30º with a uniform externalmagnetic field of 0.25 T experiences a torque of magnitude equal to 4.5 x 10-2J. What is the magnitude of magnetic moment of the magnet?

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Question:
A short bar magnet placed with its axis at 30º with a uniform externalmagnetic field of 0.25 T experiences a torque of magnitude equal to 4.5 x 10^-2J. What is the magnitude of magnetic moment of the magnet?