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Electromagnetic Field Theory

Electromagnetic Field Theory
Which of the following represents ohms law

 I = GV
 V = RI
All of these
 J = σE

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Electromagnetic Field Theory
The frequency range for satellite communication is

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

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Electromagnetic Field Theory
1 Tesla =

 1 wb- m2.
 1 wb .
 1 wb/ m2.
 1 wb/m.

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Electromagnetic Field Theory
A plane wave magnetic field is represented by Bx = cos(y – ct). The electric and magnetic fields will be zero in the direction

 Ey = Ez = 0, By = Bz = 0.
 Ex = Ey = 0, By = Bz = 0.
 Ex = Ey = 0, Bx = By = 0.
 None of these.

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Electromagnetic Field Theory
A loop antenna is a commonly used for

Satellite communication
All of these
Direction finding
Radar

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

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

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MORE MCQ ON Electromagnetic Field Theory

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