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Electromagnetic Field Theory

Electromagnetic Field Theory
Ohm’s law in point from field theory can be expressed as

 J = E / σ.
 J = σE.
 V = IR.
 R = ρ × ( l / A).

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Electromagnetic Field Theory
Materials subjected to rapid reversals of magnetism should have

 low hysteresis loss.
 high permeability.
 both a and b.
 low permeability.

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Electromagnetic Field Theory
A loop antenna is a commonly used for

All of these
Direction finding
Satellite communication
Radar

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Electromagnetic Field Theory
Conductor is varying and field is fixed then emf will be induced. This principle is called

None of these
 dynamically induced emf.
 both A and B.
 static induced emf.

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Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Faradays law.
 Lenzs law.
 Amperes law.
 Kirchhoffs law.

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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

VLF
VHF
UHF
HF

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MORE MCQ ON Electromagnetic Field Theory

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