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Magnetism and Electromagnetism

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

Lumens
None of the listed here
Tesla
Weber

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Magnetism and Electromagnetism
A magnetic field exists around

Copper
Aluminium
Iron
Moving Charges

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Magnetism and Electromagnetism
Ferrites are a sub-group of

Non-magnetic materials
Ferro magnetic material
Ferri-magnetic material
Paramagnetic material

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Magnetism and Electromagnetism
Which of the following is a ferromagnetic material?

Tungsten
Copper
Nickel
Aluminium

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Magnetism and Electromagnetism
The unit for permeability is

Wb/At × m
At/Wb
At/m
Wb

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

300 AT
30 AT
0.3 AT
3 AT

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