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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is

1,000 V
2,000 V
3,125 V
31.25 V

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

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Magnetism and Electromagnetism
Unit for quantity of electricity is

Coulomb
Joule
Ampere
Ampere-hour

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Magnetism and Electromagnetism
When the current through the coil of an electromagnet reverses, the

direction of the magnetic field reverses
direction of the magnetic field remains unchanged
magnetic field expands
magnetic field collapses

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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
None of the listed here
Increase
Decrease

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Magnetism and Electromagnetism
Which of the following is a vector quantity?

Relalative permeability
Magnetic potential
Magnetic field intensity
Flux density

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MORE MCQ ON Magnetism and Electromagnetism

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