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Electromagnetic Field Theory

Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency

Zero
Very high
Infinite
Very low

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Electromagnetic Field Theory
The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is

 1.15 J.
 0.15 J.
 0.015 J.
 0.5 J.

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Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.19 m.
 1.59 m.
 1.39 m.
 1.29 m.

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Electromagnetic Field Theory
The frequency range for satellite communication is

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

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Electromagnetic Field Theory
A pure inductor is connected across a voltage source. Find the active power drawn by the inductor?

None of these
 maximum
 either 1 or 2
 0

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Electromagnetic Field Theory
The radiation pattern of loop antenna is

Elliptical
Cardoid or Limacon
Circle
Semicircle

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MORE MCQ ON Electromagnetic Field Theory

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