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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

Zero
BLI
None of the listed here
BLI2

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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
remains unchanged
increases
reverses polarity

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Magnetism and Electromagnetism
A material which is slightly repelled by a magnetic field is known as

ferromagnetic material
conducting material
paramagnetic material
diamagnetic material

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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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Magnetism and Electromagnetism
What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it?

187 At
300 At
18.75 At
30 At

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Magnetism and Electromagnetism
The unit of relative permeability is

Its dimensionless
Hennry
None of the listed here
Hennry/meter

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MORE MCQ ON Magnetism and Electromagnetism

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