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Electromagnetic Field Theory

Electromagnetic Field Theory
XEROX machine is working on

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

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Electromagnetic Field Theory
A satellite that simply reflect back the signals from one region of the earth to the other region is known as

Active satellite
Geostationary satellite
Orbiting satellite
Passive satellite

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Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to

Wave frequency
Antenna height
Distance of the point from the antenna
Current of the antenna

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Electromagnetic Field Theory
The Kirchhoff’s current law is implict in expression

 Divergence of B = 0.
 Divergence of D = ρv.
 Curl of H = J + (δ D)/(δ t).
  Surface integral of (j.ds) = 0.

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Electromagnetic Field Theory
Magnetic current is composed of which of the following?

 Both conduction and displacement current.
None of these
 Only conduction current.
 Only displacement current.

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Electromagnetic Field Theory
Conductor is static and the field is varying then emf will be induced. This principle is called

 dynamically induced emf.
 none of these
 virtually induced emf.
 static induced emf.

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MORE MCQ ON Electromagnetic Field Theory

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