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Electromagnetic Field Theory

Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency

Very low
Very high
Zero
Infinite

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Electromagnetic Field Theory
The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following

 q(H + V × E).
 q(E + V × B).
 q(E + B × V).
 q(E +V × H).

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Electromagnetic Field Theory
The potential that appears at a point in space due to the current which caused it is called potential

Oscillating
Accelerating
Lagging the current
Retardation

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

 20.
 10.
 50.
 5.

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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

 the number of their turns.
 all of above.
 cross sectional area of their common core.
 permeability of core.

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Electromagnetic Field Theory
Electric field intensity (E) at ant point in an electric field is equal to

 (potential gradient)2.
 potential gradient.
 (potential gradient)1/2.
 (potential gradient)1/3.

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MORE MCQ ON Electromagnetic Field Theory

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