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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
Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is

  2 V.
 √ 2 V.
 Zero.
 1 V.

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Electromagnetic Field Theory
If the resistance of a conductor does not vary in accordance with the Ohms law it is known as

 bad conductor.
 non - conductor.
 reverse conductor.
 non - linear conductor.

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Electromagnetic Field Theory
A square corner reflector is used in which of the following?

Point-to-point communication
Radio astronomy
TV broadcast
All of these

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Electromagnetic Field Theory
A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is

 Due to both rotating and transformer action.
 Zero.
 Due to transformer only.
 Due to rotating only.

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Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be

 zero.
 parallel to axis.
 perpendicular to axis.
 at an angle 45o with the axis.

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MORE MCQ ON Electromagnetic Field Theory

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