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Electromagnetic Field Theory

Electromagnetic Field Theory
For an inductor, current is proportional to

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

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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

 Zero.
 0.5.
 1.0.
 2.0.

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

 Zero.
 E.
 | E |.
 Null vector.

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Electromagnetic Field Theory
Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is

 450.
 600.
 300.
 150.

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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

HF
VLF
UHF
VHF

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Electromagnetic Field Theory
What is the unit of magnetic charge

 Ampere.
  Ampere meter.
 Coulomb.
 Ampere-meter square.

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MORE MCQ ON Electromagnetic Field Theory

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