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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The bar magnet has

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

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Magnetism and Electromagnetism
Substances which have permeability less than the permeability of free space are known as

Diamagnetic material
Bipolar
Paramagnetic material
Ferro magnetic material

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Magnetism and Electromagnetism
What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2?

91.7 T
91 T
9.7 T
917 T

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Magnetism and Electromagnetism
Degaussing is the process of

Removal of magnetic impurities
Demagnetising metallic parts
Remagnetising metallic parts
Removing gases from the materials

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Magnetism and Electromagnetism
Temporary magnets are used in

All of the listed here
Generators
Loud speakers
Motors

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Magnetism and Electromagnetism
What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current?

2,400 At
240 At
24 At
2.4 At

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MORE MCQ ON Magnetism and Electromagnetism

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