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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Reciprocal of permeability is

Susceptibility
Permeability
Reluctivity
conductance

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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?

12
6
8
4

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Magnetism and Electromagnetism
What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ?

22 x 10"5 N
22 x 10-6 N
22 x 10"7 N
22 x 10"8 N

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Magnetism and Electromagnetism
The unit for permeability is

At/Wb
At/m
Wb
Wb/At × m

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Magnetism and Electromagnetism
Unit for quantity of electricity is

Ampere-hour
Joule
Coulomb
Ampere

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Magnetism and Electromagnetism
For which of the following materials the saturation value is the highest?

Ferromagnetic materials
Ferrites
Paramagnetic materials
Diamagnetic materials

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MORE MCQ ON Magnetism and Electromagnetism

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