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Electromagnetic Field Theory

Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = b
a = b/4
a = 2b
a = 3b

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Electromagnetic Field Theory
For an inductor, current is proportional to

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

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Electromagnetic Field Theory
An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to

 A monopole.
 A dipole.
 A quardra pole.
 Both of A and B.

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Electromagnetic Field Theory
Magnetic current is composed of which of the following?

None of these
 Only conduction current.
 Only displacement current.
 Both conduction and displacement current.

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Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field

 magnetic flux lines are always closed.
 it is conservative.
 it is solenoidal.
 it has no sink or sources.

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Electromagnetic Field Theory
The frequency range for satellite communication is

300 to 3000 kHz
30000 to 300000 MHz
3 to 30 kHz
3000 to 30000 MHz

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MORE MCQ ON Electromagnetic Field Theory

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