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Electromagnetic Field Theory

Electromagnetic Field Theory
For DC voltage an inductor is virtually a

 depends on polarity.
 depends on magnitude of voltage.
 short circuit.
 open circuit.

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Electromagnetic Field Theory
What is the unit of magnetic charge

 Ampere.
 Coulomb.
 Ampere-meter square.
  Ampere meter.

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Electromagnetic Field Theory
The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as

 self inductance.
 mutual inductance.
 series aiding inductance.
 capacitance.

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Electromagnetic Field Theory
Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s

 second law
 fourth law
 third law
 first law

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Electromagnetic Field Theory
In frec space E (z,t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z,t)

 None of above.
 (103/377) sin(ωt - β z)(-uy) A/m.
 (103/377) cos(ωt - β z)(-ux) A/m.
  (103/377) sin(ωt - β z)(-ux) A/m.

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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 50.
 1/75.
 75.
 100.

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MORE MCQ ON Electromagnetic Field Theory

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