State Curie law in magnetism.

Important Questions on Magnetism and Matter

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 38

What do you mean by hard magnetic material?

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 39

Why is diamagnetism almost independent of temperature?

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 40

A short bar magnet has a magnetic moment of $0.64 \mathrm{J}{ \mathrm{T}}^{-1}.$ Find magnitude of magnetic field produced by magnet at distance of $10 \mathrm{cm}$ from its centre on the equatorial line of the magnet. Also write the direction of magnetic field.

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 41

A circular coil of $20$ turns and radius $10 \mathrm{cm}$ carrying current of $0.080$ A rests with its plane normal to an external magnetic field of magnitude $2.0\times {10}^{-2} \mathrm{T}.$ When coil is turned by $30°,$ find magnitude of field torque on the coil.

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 42

A bar magnet of magnetic dipole moment $12 \mathrm{A}{ \mathrm{m}}^2$ has magnetic length $48 \mathrm{cm}.$ Calculate the pole strength.

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 43

Whether it is possible that a magnet has No poles.

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 43

Whether it is possible that a magnet has two similar poles

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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 43

Whether it is possible that a magnet has three poles