EASY
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When a bar magnet of pole strength 'm' and magnetic moment 'M' is cut into equal parts longitudinally and transversely then pole strength and magnetic moment of each piece is respectively

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Important Questions on Magnetism

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IMPORTANT
MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 21
The magnetic induction at a point 1000 mm from the centre of the dipole along the equator is equal in magnitude to the earth's horizontal component of magnetic field. The angle of dip δ is such that cosδ=sinδ and Bv=5×10-4 T. The magnetic dipole moment is
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 22
A magnetising field of 1600 A m-1 produces a magnetic flux of 2.4×10-5 Wb in a bar of iron of cross section 0.2 cm2. Then permeability of the bar is
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MHT-CET
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 23
According to the atomic theory, on heating a magnet, the thermal energy of the elementary magnet
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 24
The north pole of a magnet is brought near a stationary negatively charged conductor. Will the pole experience any force?
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 25
The orbital speed of an electron orbiting around the nucleus in a circular orbit of radius is v. Then the magnetic dipole moment of the electron will be
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 26
Which of the following is a vector quantity?
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 27
Choose the correct statement/s:
(i) Magnetic field lines try to expand in length.
(ii) Magnetic field lines repel each other laterally.
(iii) Magnetic field lines attract each other laterally.
(iv) Magnetic field lines are crowded in region where magnetic induction has least value.
EASY
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IMPORTANT
MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 8 - Magnetism>Critical Thinking>Q 28
Assertion: We cannot think of magnetic field configuration with three poles.

Reason: A bar magnet does exert a torque on itself due to its own field.