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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Gilbert is a unit of

permittivity
electromotive force
magnetomotive force
conductance

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Magnetism and Electromagnetism
What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m?

10 AT
4 AT
16 AT
8 AT

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Magnetism and Electromagnetism
When the current through the coil of an electromagnet reverses, the

direction of the magnetic field remains unchanged
direction of the magnetic field reverses
magnetic field collapses
magnetic field expands

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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 magnetism left in the iron after exciting field has been removed is known as

residual magnetism
permeance
reluctance
susceptance

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Magnetism and Electromagnetism
The materials having low retentivity are suitable for making

None of the listed here
Permanent magnet
Temporary Magnet
Weak magnet

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MORE MCQ ON Magnetism and Electromagnetism

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