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Electromagnetic Field Theory

Electromagnetic Field Theory
The magnetic vector potential due to a single conductor carrying current is

 finite.
 none of tha above.
 zero.
 infinite.

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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 1/75.
 50.
 100.
 75.

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Electromagnetic Field Theory
The Kirchhoff’s current law is implict in expression

 Divergence of D = ρv.
 Curl of H = J + (δ D)/(δ t).
 Divergence of B = 0.
  Surface integral of (j.ds) = 0.

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

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

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

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

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

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

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MORE MCQ ON Electromagnetic Field Theory

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