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An iron rod of length l and magnetic moment M is bent in the form of a semi-circle. Now its magnetic moment will be nm. The value of n is

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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 2
The variation of magnetic susceptibility χm with absolute temperature T for a Paramagnetic material is
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 3
At a certain place a magnet makes 30 oscillations per minute in oscillation magnetometer. At another place where horizontal component of earth's magnetic field is 4 times, its time period will be
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 4
The horizontal and vertical component of earth's magnetic field at a place are 0.3 G and 0.6 G respectively. The angle of dip at that place is
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 5
The magnetic susceptibility of which substance is small and positive?
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 6
_____ magnets are used in medical practice for removing pieces of iron from wounds.
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 7
Magnetic susceptibility of paramagnetic substance is _____ proportional to absolute temperature T.
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 8
The angle between magnetic meridian and geographic meridian is known as _____.
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Gamma Question Bank for Medical Physics>Chapter 20 - Magnetism and Matter>Assignment Set-1>Q 9
Name the material which has negative magnetic susceptibility.