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Electromagnetic Field Theory

Electromagnetic Field Theory
The frequency range for satellite communication is

300 to 3000 kHz
3000 to 30000 MHz
30000 to 300000 MHz
3 to 30 kHz

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Electromagnetic Field Theory
The principle of dynamically induced emf is utilized in a

 transformer.
 choke.
 thermocouple.
 generator.

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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.

 0.88 mm.
 1.32 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
All of these
Radio astronomy
TV broadcast

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Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.

 2.5T.
 5T.
 0.5T.
 10T.

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Electromagnetic Field Theory
In a perfect conductor the incident and reflected wave combine to produce

A stronger reflected wave
A standing wave which is not progressing
None of these
A stronger incident wave

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MORE MCQ ON Electromagnetic Field Theory

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