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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Unit for quantity of electricity is

Joule
Ampere
Ampere-hour
Coulomb

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Magnetism and Electromagnetism
The unit for reluctance is

Wb
tesla
At/m
At/Wb

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Magnetism and Electromagnetism
Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be

0.01 N
0.1 N
100 N
10 N

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Magnetism and Electromagnetism
The magnetic materials exhibit the property of magnetisation because of

either of these
orbital motion of electrons
spin of electrons
spin of nucleus

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Magnetism and Electromagnetism
The change of cross-sectional area of conductor in magnetic field will affect

both of the listed here
resistance of conductor
reluctance of conductor
None of these

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

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

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MORE MCQ ON Magnetism and Electromagnetism

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