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Magnetic field intensity is defined as

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Important Questions on Magnetism

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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 10
A magnetic needle kept in a non-uniform magnetic field experiences
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 11
Two identical thin bar magnets each of length l and pole strength m are placed at right angles to each other with the north pole of one touching the south pole of the other. Magnetic moment of the system is
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 12
What happens to the force between the magnetic poles when their pole strength and the distance between them are both doubled?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 13
The work done in turning a magnet of magnetic moment M by an angle of 90° from the meridian is n times the corresponding work done to turn it through an angle of 60°, where n is given by
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 14
Magnetic lines of force due to a bar magnet do not intersect, because
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 15
The unit of magnetic moment is
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 16
A permanent magnet
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 17
The SI unit of magnetic permeability is