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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)?

270
180
360
90

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Magnetism and Electromagnetism
The induced voltage across a stationary conductor in a stationary magnetic field is

reversed in polarity
increased
zero
decreased

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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

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

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

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

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

Maxwell
Weber
Tesla
All of the listed here

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Magnetism and Electromagnetism
The unit of flux is the same as that of

Permanance
Pole strength
Reluctance
Resistance

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MORE MCQ ON Magnetism and Electromagnetism

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