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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Tesla is a unit of

Flux
Field strength
Inductance
Flux density

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Magnetism and Electromagnetism
A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ?

63.38 N/Wb
63380 N/Wb
6338 N/Wb
633.8 N/Wb

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Magnetism and Electromagnetism
Which of the following is the unit of magnetic flux density?

Weber
Tesla
Lumens
None of the listed here

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Magnetism and Electromagnetism
The bar magnet has

Dipole moment
None of the listed here
Monopole moment
Both dipole and monopole moment

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Magnetism and Electromagnetism
When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon

Motion of the magnet
Number of turns of the coil
Pole strength of the magnet
Resistance of the coil

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Magnetism and Electromagnetism
The Biotsavart's law is a general modification of

Kirchhoff's law
Faraday's laws
Ampere's law
Lenz's law

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MORE MCQ ON Magnetism and Electromagnetism

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