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Electromagnetic Field Theory

Electromagnetic Field Theory
Two straight parallel conductors carry equal currents in opposite direction. The force between them is

 none of above.
 repulsive.
 attractive.
 zero.

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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

VLF
HF
UHF
VHF

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Electromagnetic Field Theory
Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike?

None of these
Charge per unit area becomes very high for lightening to discharge
Dust particles may not accumulate
Rain drops may not collect

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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.
  Loss tangent.
 Reflector coefficient.
 Constitutive parameters.

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Electromagnetic Field Theory
A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be

 0.8 π V.
 8 π V.
 Zero.
 0.4 π V.

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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.
 | E |.
 Null vector.

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MORE MCQ ON Electromagnetic Field Theory

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