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Electromagnetic Field Theory

Electromagnetic Field Theory
If E is the electric field intensity, then what is the value of divergence of (curl of E)?

 E.
 Null vector.
 Zero.
 | E |.

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

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

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Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

 zero.
 BI2L.
 BIL.
 BL2I.

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Electromagnetic Field Theory
In a perfect conductor the incident and reflected wave combine to produce

A stronger reflected wave
A standing wave which is not progressing
A stronger incident wave
None of these

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Electromagnetic Field Theory
The force experienced by a current carrying conductor lying parallel to a magnetic field is

 Bil cosθ.
 Bil sinθ.
 zero.
 BIL.

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Electromagnetic Field Theory
The heating time constant of an electrical machine gives an indication of its

 short time rating.
 rating.
 cooling.
 overload capacity.

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MORE MCQ ON Electromagnetic Field Theory

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