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Electromagnetic Field Theory

Electromagnetic Field Theory
Which of the following represents ohms law

 I = GV
 V = RI
All of these
 J = σE

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Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be

 at an angle 45o with the axis.
 perpendicular to axis.
 parallel to axis.
 zero.

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Electromagnetic Field Theory
The radiation pattern of a parabola antenna is

None of these
Highly directional
A figure of directional
Omnidirectional

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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

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

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Electromagnetic Field Theory
The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes

 100 μ v/m.
 - 100 μ v/m.
 None of above.
 0.

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Electromagnetic Field Theory
The radiation pattern of loop antenna is

Circle
Cardoid or Limacon
Semicircle
Elliptical

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MORE MCQ ON Electromagnetic Field Theory

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