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Electromagnetic Field Theory

Electromagnetic Field Theory
Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is

 Q / 4π.
 Q / 6ε.
 4πQ / 6ε.
 Q / 6.

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Electromagnetic Field Theory
RF inductor are characterized by

 high current rating and low resistance.
 high current rating and high resistance.
 low current rating and low resistance.
 low current rating and high resistance.

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Electromagnetic Field Theory
Coulombs law for the force between electric charges most closely resembles with

 Newtons law of gravitation.
 Gauss theorem.
 Newtons law of motion.
 Law of conservation of energy.

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Electromagnetic Field Theory
The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then

 it is a perfect transformer.
 turns ratio of the transformer is also two.
 transformer is an ideal transformer.
 none of these.

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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
Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is

 zero.
 dependent on coordinates of field points.
 same as that produced by one plate.
 double the field produced by one plate.

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