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Electromagnetic Field Theory

Electromagnetic Field Theory
The frequency range for satellite communication is

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

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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.
  1.77 mm.
 0.88 mm.
 1.32 mm.

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Electromagnetic Field Theory
A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation

 y direction.
 z direction.
 – z direction.
 – y direction.

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Electromagnetic Field Theory
The operation of electric generators and motors depend on the intraction between magnetic field and

 Copper conductors.
 Commutator.
  Electric current.
 Electric fields.

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Electromagnetic Field Theory
Electric field strength of charge

 Increase distance.
 Decrease with distance.
 Decrease with square distance.
 Increase square distance.

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 3332.47 N.
 1666.22 N.
 6664.8 N.
 832.29 N.

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MORE MCQ ON Electromagnetic Field Theory

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