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Electromagnetic Field Theory

Electromagnetic Field Theory
The main purpose of choke is

 to pass high frequencies.
 none of above.
 to block low frequencies.
  to pass low frequencies.

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Electromagnetic Field Theory
Which is the major factor for determining whether a medium is free space, lossless dielectric or a good conductor

  Loss tangent.
 Attenuation constant.
 Reflector coefficient.
 Constitutive parameters.

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Electromagnetic Field Theory
The shape of B-H curve for air gap is

 hyperbola.
 parabola.
 straight line.
 ellipse.

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Electromagnetic Field Theory
For DC voltage an inductor is virtually a

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

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Electromagnetic Field Theory
An infinite non conducting sheet of charge has σ of 10-7 c/m3. Equipotential surface for a potential of 10 volts is.

  1.77 mm.
 0.88 mm.
 0.
 1.32 mm.

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Totally retarded
Neither accelerated nor retarded
Accelerated
Retarded

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MORE MCQ ON Electromagnetic Field Theory

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