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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Susceptibility is positive for

None of these
diamagnetic substances
ferromagnetic substances
non-magnetic substances

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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
10 N
0.1 N
100 N

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Magnetism and Electromagnetism
Ferrites are materials.

Diamagnetic
None of the listed here
Ferromagnetic
Paramagnetic

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Magnetism and Electromagnetism
There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb?

1,440 At/Wb
14,400 At/Wb
9,000 At/Wb
90,000 At/Wb

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Magnetism and Electromagnetism
The stray line of magnetic flux is defined as

A line of magnetic flux which does not follow the designed path
A line vertical to the flux lines
The mean length of a ring shaped coil
A line of magnetic flux in a non-uniform field

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Magnetism and Electromagnetism
Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.

circular
rectangular
triangular
None of the listed here

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MORE MCQ ON Magnetism and Electromagnetism

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