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Electromagnetic Field Theory

Electromagnetic Field Theory
For an inductor, current is proportional to

 none of them.
 magnetic field.
 both (A) and (B).
 voltage across the inductor.

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Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying

 106 volts/sec.
 106 Amp.
 106 volts.
 106 Amp/sec.

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Electromagnetic Field Theory
For a linear electromagnetic circuit, which of the following statement is true?

 Co-energy is zero.
 Field energy is lesser than the co-energy.
 Field energy is equal to the co-energy.
 Field energy is greater than the co-energy.

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Electromagnetic Field Theory
A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be

 3.75 N.
 15 N.
 20 N.
 7.5 N.

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Electromagnetic Field Theory
The ability of charged bodies to exert force on one another is attributed to the existence of

 electric field.
 electrons.
 neutrons.
 protons.

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Totally retarded
Neither accelerated nor retarded
Accelerated
Retarded

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MORE MCQ ON Electromagnetic Field Theory

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