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Magnetism and Electromagnetism

Magnetism and Electromagnetism
If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage

Is zero
Increase
Decrease
None of the listed here

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Magnetism and Electromagnetism
Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.

rectangular
triangular
None of the listed here
circular

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Magnetism and Electromagnetism
The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is

inversely proportional to I
proportional to X
proportional to distance between the conductors
proportional to 7

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

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Magnetism and Electromagnetism
The magnetic materials exhibit the property of magnetisation because of

orbital motion of electrons
spin of nucleus
spin of electrons
either of these

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Magnetism and Electromagnetism
One telsa is equal to

1 Wb/m
1 mWb/m²
1 Wb/m²
1 Wb/mm²

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MORE MCQ ON Magnetism and Electromagnetism

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