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Electromagnetic Field Theory

Electromagnetic Field Theory
For an inductor, current is proportional to

 none of them.
 magnetic field.
 both (A) and (B).
 voltage across the inductor.

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Electromagnetic Field Theory
The radiation pattern of a parabola antenna is

Highly directional
A figure of directional
Omnidirectional
None of these

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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
The principle of dynamically induced emf is utilized in a

 thermocouple.
 choke.
 generator.
 transformer.

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Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Faradays law.
 Lenzs law.
 Amperes law.
 Kirchhoffs law.

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

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

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MORE MCQ ON Electromagnetic Field Theory

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