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Electromagnetic Field Theory

Electromagnetic Field Theory
For an inductor, current is proportional to

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

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

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

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Electromagnetic Field Theory
The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is

 4.
 8.
 3.
 2.

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Electromagnetic Field Theory
The emf induced in a conductor rotating in bipolar field is

 DC and AC both.
 none of these.
 DC.
 AC.

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Electromagnetic Field Theory
In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

 2.0.
 Zero.
 1.0.
 0.5.

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Electromagnetic Field Theory
Biot-Savarts law states the relation between magnetic intensity and

 volume current only.
 (A), (B), and (D) are all correct.
 surface current only.
 filament current only.

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MORE MCQ ON Electromagnetic Field Theory

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