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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The unit for reluctance is

At/m
tesla
At/Wb
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

10 N
100 N
0.1 N
0.01 N

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Magnetism and Electromagnetism
Susceptibility is positive for

non-magnetic substances
ferromagnetic substances
None of these
diamagnetic substances

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Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

KT3 and 1CT6
KT4 and KT8
10"2 and KT5
1CT3 and 1CT7

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

A line of magnetic flux in a non-uniform field
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

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Magnetism and Electromagnetism
Which of the following is expected to have the maximum permeability ?

Copper
Brass
Ebolite
Zinc

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MORE MCQ ON Magnetism and Electromagnetism

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