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Electromagnetic Field Theory

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

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

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Electromagnetic Field Theory
A square corner reflector is used in which of the following?

All of these
Point-to-point communication
TV broadcast
Radio astronomy

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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)?

 | E |.
 Zero.
 Null vector.
 E.

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Electromagnetic Field Theory
In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will

 increase.
 remain the same.
 decrease.
 initially increase and then decrease.

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Electromagnetic Field Theory
Which is the major factor for determining whether a medium is free space, lossless dielectric or a good conductor

 Attenuation constant.
 Reflector coefficient.
  Loss tangent.
 Constitutive parameters.

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Electromagnetic Field Theory
A medium is said to be isotropic when

 ∈ is zero.
 ∈ = μ.
 ∈ = μσ.
 ∈ is a scalar constant.

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MORE MCQ ON Electromagnetic Field Theory

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