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Electromagnetic Field Theory

Electromagnetic Field Theory
The frequency range for satellite communication is

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

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Electromagnetic Field Theory
MUF is depend upon

11 year sun spot cycle
Received frequency by receiver
Electron density of the ionospheric layer
Height of ionospheric layer

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Electromagnetic Field Theory
The shape of B-H curve for air gap is

 straight line.
 ellipse.
 parabola.
 hyperbola.

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Electromagnetic Field Theory
The power gain of a half-wave dipole with respect to an isotropic radiator is

4.15 db
2.15 db
6 db
3 db

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Electromagnetic Field Theory
The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is

 40 nj.
 20 nj.
 100 nj.
 60 nj.

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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 50.
 100.
 75.
 1/75.

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MORE MCQ ON Electromagnetic Field Theory

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