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Magnetism and Electromagnetism

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
100 At
200 At
150 At

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Magnetism and Electromagnetism
For which of the following materials the net magnetic moment should be zero?

ferrimagnetic materials
diamagnetic materials
antiferrimagnetic materials
antiferromagnetic materials

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Magnetism and Electromagnetism
The ratio of intensity of magnetisation to the magnetisation force is known as

Flux density
Susceptibility
None of the listed here
Relatice permeability

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Magnetism and Electromagnetism
The Biotsavart's law is a general modification of

Ampere's law
Kirchhoff's law
Faraday's laws
Lenz's law

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

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Magnetism and Electromagnetism
What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m?

10 AT
16 AT
4 AT
8 AT

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MORE MCQ ON Magnetism and Electromagnetism

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