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Electromagnetic Field Theory

Electromagnetic Field Theory
The lagging of flux density behind the applied magnetising force is known as

 flux.
 hysteresis.
 permeance.
All of these

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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the

 all of above.
 dielectric hysteresis.
 phenomenon of dielectric polarisation.
 maximisation of electrostatic flux.

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Electromagnetic Field Theory
In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

 0.5.
 2.0.
 1.0.
 Zero.

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Electromagnetic Field Theory
A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position

  - 5 × 10-5 uy N.
 5 × 10-5 uy N.
 5 × 10-5 ux N.
 5 × 10-5 uz N.

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Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then

 n. k = 0.
 n = - k.
 n × k = 0.
 n = K.

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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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MORE MCQ ON Electromagnetic Field Theory

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