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The permeability of a metal is 0.1256 T mA-1. What is its relative permeability?
 

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Important Questions on Magnetism

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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 123
What is the magnetization of a bar magnet having length 6 cm and area of cross section  5 cm2?M=1 A m2
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 124
The space within a current carrying toroid is filled with tungsten of susceptibility 6.8×10-5. The percentage increase in the magnetic field B is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 125
A magnet of magnetic moment 3 A m2 weighs 75 g. The density of the material of the magnet is 7500 kg m-3. What is the magnetization?
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 126
A curve between saturation magnetization and temperature of a ferromagnetic sample is
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 127
A domain in a ferromagnetic substance is in the form of a cube of side length 1 μm. If it contains 8×1010 atoms and each atomic dipole has a dipole moment of 9×10-24 A m2, then magnetization of the domain is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 128

The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point

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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 129
A bar magnet has a length of 3 cm, cross-sectional area 2 cm2 and magnetic moment 3 A m2. The intensity of magnetisation of the bar magnet is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 130
Relative permeability of iron is 5500, then its magnetic susceptibility will be