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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The magnetism left in the iron after exciting field has been removed is known as

reluctance
permeance
residual magnetism
susceptance

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Magnetism and Electromagnetism
Fleming's left hand rule is used to find

Direction of flux in a solenoid
Direction of magnetic field due to current carrying conductor
Polarity of a magnetic pole
Direction of force on a current carrying conductor in a magnetic field

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Magnetism and Electromagnetism
A permeable substance is one

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

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Ferro magnetic material
None of the listed here
Diamagnetic material
Paramagnetic material

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Magnetism and Electromagnetism
The relative permeability is less than unity is case of

Paramagnetic material
Ferrits
Ferromagnetic material
Diamagnetic material

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Magnetism and Electromagnetism
Magnetising steel is normals difficult because

it has low permeability
it corrodes easily
it has high permeability
it has high specific gravity

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MORE MCQ ON Magnetism and Electromagnetism

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