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Magnetism and Electromagnetism

Magnetism and Electromagnetism
One telsa is equal to

1 mWb/m²
1 Wb/mm²
1 Wb/m²
1 Wb/m

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Magnetism and Electromagnetism
Which of the following is the unit of magnetic flux density?

Tesla
Lumens
None of the listed here
Weber

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Magnetism and Electromagnetism
Susceptibility is positive for

None of these
diamagnetic substances
non-magnetic substances
ferromagnetic substances

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Magnetism and Electromagnetism
What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200?

6
4
12
8

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Magnetism and Electromagnetism
Air gap has_______eluctance as compared to iron or steel path

higher
lower
zero
little

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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

100 N
10 N
0.1 N
0.01 N

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