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Electromagnetic Field Theory

Electromagnetic Field Theory
Which antenna is a wideband antenna?

Marconi antenna
Hertz antenna
None of these
Folded dipole

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Electromagnetic Field Theory
As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the

 group velocity.
 phase velocity.
 normal velocity.
 velocity of propagation.

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Electromagnetic Field Theory
XEROX machine is working on

 magnetic effect.
 peltier effect.
 electrostatic effect.
 heating effect of current.

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Electromagnetic Field Theory
A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is

 5 N.
 2.5 N.
 3.75 N.
 2 N.

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Electromagnetic Field Theory
Two parallel plates are separated by a distance D charged by V volt. The field intensity E is given by,

 V × D
 V² / D
 V / D
 V × D²

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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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MORE MCQ ON Electromagnetic Field Theory

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