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Electromagnetic Field Theory

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.

 1.32 mm.
 0.88 mm.
 0.
  1.77 mm.

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Electromagnetic Field Theory
A square corner reflector is used in which of the following?

Point-to-point communication
Radio astronomy
All of these
TV broadcast

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Electromagnetic Field Theory
RF inductor are characterized by

 high current rating and high resistance.
 low current rating and high resistance.
 high current rating and low resistance.
 low current rating and low resistance.

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Electromagnetic Field Theory
Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is

 0.577.
 0.477.
 0.447.
 0.01.

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Electromagnetic Field Theory
The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by

 ω.
 ω / π.
 ω/4π.
 ω/2π.

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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.
 Constitutive parameters.
 Attenuation constant.
 Reflector coefficient.

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MORE MCQ ON Electromagnetic Field Theory

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