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Electromagnetic Field Theory

Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = b
a = 3b
a = b/4
a = 2b

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Electromagnetic Field Theory
Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is

 2 A/m.
 1 A/m.
 4 A/m.
 8 A/m.

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Electromagnetic Field Theory
The frequency range for satellite communication is

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

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Electromagnetic Field Theory
Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will

 will move out of the field of influence of two charges.
 not be equilibrium.
 remain in stable equilibrium.
 be in unstable equilibrium.

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Electromagnetic Field Theory
Which of the following is multiband HF receiving antenna?

Square loop
Conical horn
Folded dipole
Log-periodic

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Electromagnetic Field Theory
Poyniting vector has the dimensions

 Watts/metre2.
 Watt/metre.
 Watt × metre2.
 Watt × metre.

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MORE MCQ ON Electromagnetic Field Theory

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