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Electromagnetic Field Theory

Electromagnetic Field Theory
A square corner reflector is used in

Point to point communication
Radio astronomy
Tv broadcast
All of these

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Electromagnetic Field Theory
The radiation pattern of loop antenna is

Circle
Semicircle
Elliptical
Cardoid or Limacon

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Electromagnetic Field Theory
When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called

Absorption
Polarisation
Scattering
Dispersion

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Electromagnetic Field Theory
RF inductor are characterized by

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

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Electromagnetic Field Theory
Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is

 1.
 4.
 2.
 0.5.

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Electromagnetic Field Theory
When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be

 steady.
 alternating.
 none of these.
 pulsating.

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MORE MCQ ON Electromagnetic Field Theory

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