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Electromagnetic Field Theory

Electromagnetic Field Theory
The frequency range for satellite communication is

30000 to 300000 MHz
300 to 3000 kHz
3000 to 30000 MHz
3 to 30 kHz

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Electromagnetic Field Theory
In free space E (z, t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z, t)

 (103/377) sin(ωt - β z)(ux) A/m.
 None of above.
 (103/377) cos(ωt - β z)(-ux) A/m.
 (103/377) sin(ωt - β z)(-ux) A/m.

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Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is

  – 360 πuz v/m.
 – 72 πuz v/m.
 – 18 πuz v/m.
 – 10 uz v/m.

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

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

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

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

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Electromagnetic Field Theory
For a line characteristic impedance zo terminated is load zo/3, the reflection coefficient is

  – ½.
 – 1/3.
 2/3.
 1/3.

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MORE MCQ ON Electromagnetic Field Theory

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