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Electromagnetic Field Theory

Electromagnetic Field Theory
The force experienced by a current carrying conductor lying parallel to a magnetic field is

 BIL.
 Bil cosθ.
 zero.
 Bil sinθ.

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Electromagnetic Field Theory
Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is

 double the field produced by one plate.
 zero.
 same as that produced by one plate.
 dependent on coordinates of field points.

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Electromagnetic Field Theory
What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it?

 Unity.
 Zero.
 Depends on strength of current element.
 Infinity.

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 6664.8 N.
 832.29 N.
 3332.47 N.
 1666.22 N.

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Electromagnetic Field Theory
The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by

 ω/2π.
 ω/4π.
 ω.
 ω / π.

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Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

 Q/(4 π εo r3).
 3 Qr/(4 π εo R3).
 Qr/(4 π εo R3).
 QR/(4π εo r3).

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MORE MCQ ON Electromagnetic Field Theory

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