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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Air gap has_______eluctance as compared to iron or steel path

lower
zero
little
higher

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Magnetism and Electromagnetism
The ratio of intensity of magnetisation to the magnetisation force is known as

Susceptibility
Flux density
None of the listed here
Relatice permeability

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Magnetism and Electromagnetism
The direction of magnetic lines of force is

From one end of the magnet to another
From south pole to north pole
From north pole to south pole
None of the listed here

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Magnetism and Electromagnetism
The ability of a material to remain magnetized after removal of the magnetizing force is known as

permeability
hysteresis
reluctance
retentivity

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Magnetism and Electromagnetism
A permeable substance is one

through which the magnetic lines of force can pass very easily
which is a strong magnet
which is a bad conductor
which is a good conductor

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Magnetism and Electromagnetism
Which of the following is expected to have the maximum permeability ?

Brass
Copper
Ebolite
Zinc

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MORE MCQ ON Magnetism and Electromagnetism

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