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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
The critical frequency of ‘F’ layer is greater than 30 MHz.

True
False

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Electromagnetic Field Theory
XEROX machine is working on

 electrostatic effect.
 heating effect of current.
 magnetic effect.
 peltier effect.

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Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency

Infinite
Zero
Very high
Very low

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Electromagnetic Field Theory
The drawback of Daltons atomic structure is that, it says

 none of these.
 the atoms can neither be created nor be destroyed.
 unique nature of atom.
 most of the volume of an atom is empty space.

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Electromagnetic Field Theory
A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be

 25 V.
 75 V.
 50 V.
 100 V.

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MORE MCQ ON Electromagnetic Field Theory

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