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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Tesla is a unit of

Flux
Flux density
Inductance
Field strength

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Magnetism and Electromagnetism
What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2?

917 T
91 T
9.7 T
91.7 T

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Magnetism and Electromagnetism
What is the mmf of a wire with 8 turns carrying three amperes of current?

2.4 AT
240 AT
24 AT
0.24 AT

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Magnetism and Electromagnetism
A permeable substance is one

Which is a strong magnet
Through which the magnetic lines of force can pass very easily
Which is a good conductor
Which is a bad conductor

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

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Magnetism and Electromagnetism
Substances which have permeability less than the permeability of free space are known as

Diamagnetic material
Paramagnetic material
Bipolar
Ferro magnetic material

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MORE MCQ ON Magnetism and Electromagnetism

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