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Electromagnetic Field Theory

Electromagnetic Field Theory
MUF is highest in periods of greatest sunspot activity.

False
True

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Electromagnetic Field Theory
Which of the following represents ohms law

 I = GV
 V = RI
 J = σE
All of these

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Electromagnetic Field Theory
Tropospheric scatter propagation is not subject to any fading.

True
False

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Totally retarded
Accelerated
Retarded
Neither accelerated nor retarded

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Electromagnetic Field Theory
If the static magnetic flux density is B, then

 Curl of B = J.
  Divergence of B = 0.
 Curl of B = 0.
 Divergence of B = J.

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Electromagnetic Field Theory
For a linear electromagnetic circuit, which of the following statement is true?

 Co-energy is zero.
 Field energy is greater than the co-energy.
 Field energy is lesser than the co-energy.
 Field energy is equal to the co-energy.

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