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Electromagnetic Field Theory

Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = 2b
a = b/4
a = b
a = 3b

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

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

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Electromagnetic Field Theory
Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is

 0.577.
 0.01.
 0.477.
 0.447.

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Electromagnetic Field Theory
When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .

Refraction
None of these
Transmission
Reflection

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Electromagnetic Field Theory
Biot-Savarts law states the relation between magnetic intensity and

 filament current only.
 (A), (B), and (D) are all correct.
 surface current only.
 volume current only.

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

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

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MORE MCQ ON Electromagnetic Field Theory

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