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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The use of permanent magnets is. not made in

Transformers
Energy meters
None of the listed here
Loud speakers

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

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

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Magnetism and Electromagnetism
Which of the following is not a unit of flux?

Weber
All of the listed here
Maxwell
Tesla

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Magnetism and Electromagnetism
What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current?

2,400 At
24 At
240 At
2.4 At

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Magnetism and Electromagnetism
When a solenoid is activated, the force that moves the plunger is

a permanent magnetic field
a steady current
varying voltage
an electromagnetic field

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Diamagnetic material
Paramagnetic material
Ferro magnetic material
None of the listed here

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MORE MCQ ON Magnetism and Electromagnetism

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