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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Which of the following is a vector quantity?

Relalative permeability
Magnetic potential
Magnetic field intensity
Flux density

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Magnetism and Electromagnetism
A magnetic field exists around

Iron
Moving Charges
Copper
Aluminium

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

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

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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

reverses polarity
increases
decreases
remains unchanged

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Magnetism and Electromagnetism
The commonly used material for shielding or screening magnetism is

Brass
Copper
Aluminium
Soft iron

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Magnetism and Electromagnetism
For a given wirewound core, an increase in current through the coil

reverses the flux lines
increases the flux density
causes no change in flux density
decreases the flux density

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MORE MCQ ON Magnetism and Electromagnetism

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