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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be

0.24 N
24 N
2.4 N
240 N

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Magnetism and Electromagnetism
Gilbert is a unit of

conductance
permittivity
magnetomotive force
electromotive force

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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?

8
12
6
4

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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?

150 At
100 At
300 At
200 At

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Magnetism and Electromagnetism
The relative permeability of materials is not constant.

Diamagnetic
Ferromagnetic
None of the listed here
Paramagnetic

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Magnetism and Electromagnetism
Paramagnetic materials have relative permeability

equal to unity
equal to that ferromagnetic mate rials
slightly more than unity
slightly less than unity

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MORE MCQ ON Magnetism and Electromagnetism

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