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Electromagnetic Field Theory

Electromagnetic Field Theory
The frequency range for satellite communication is

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

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Electromagnetic Field Theory
Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V.

 6.25m.
 0.6m.
 0.5m.
 5.25m.

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Electromagnetic Field Theory
Which of following is not a unit of flux?

 Weber.
 Maxwell.
 All of above.
 Telsa.

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Electromagnetic Field Theory
Parabolic and lens antenna used at

High frequency
Microwave frequency
Low frequency
Medium frequency

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

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Electromagnetic Field Theory
When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be

 none of these.
 alternating.
 pulsating.
 steady.

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MORE MCQ ON Electromagnetic Field Theory

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