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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The unit of flux is the same as that of

Pole strength
Reluctance
Resistance
Permanance

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Magnetism and Electromagnetism
The unit for reluctance is

tesla
Wb
At/Wb
At/m

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Magnetism and Electromagnetism
A magnetic field exists around

Moving Charges
Copper
Iron
Aluminium

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Magnetism and Electromagnetism
If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage

decreases
reverses polarity
remains unchanged
increases

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Magnetism and Electromagnetism
For which of the following materials the saturation value is the highest?

Ferrites
Diamagnetic materials
Ferromagnetic materials
Paramagnetic materials

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

retentivity
permeability
reluctance
hysteresis

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MORE MCQ ON Magnetism and Electromagnetism

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