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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Which of the following is not a unit of flux?

Maxwell
Tesla
All of the listed here
Weber

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

Weak magnet
Permanent magnet
Temporary Magnet
None of the listed here

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Magnetism and Electromagnetism
Ferrites are materials.

None of the listed here
Diamagnetic
Paramagnetic
Ferromagnetic

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Magnetism and Electromagnetism
The unit for reluctance is

At/Wb
Wb
tesla
At/m

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Magnetism and Electromagnetism
When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle

will be infinite
will depend on the radius of the circle
will be zero
will depend on the amount of e.m.f. applied

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Magnetism and Electromagnetism
If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

remains the same
decreases
increases
doubles

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MORE MCQ ON Magnetism and Electromagnetism

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