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Communication Systems

Communication Systems
As per Shannon-Hartley theorem, a noise less Gaussian channel has

Small capacity
None of these
Infinite capacity
Zero capacity

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Communication Systems
For a given carrier wave, maximum undistorted power is transmitted when value of modulation is

0.5
0.8
1

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Communication Systems
Under ordinary circumstances, impulse noise can be reduced in

None of these
AM only
FM only
Both AM and FM

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Communication Systems
The direction of rotation of a CD is

Clockwise or anticlockwise depending on frequency of data stored
Mostly anticlockwise but some times clockwise
Clockwise
Anticlockwise

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Communication Systems
Full duplex operation permits transmission in both directions at the same time.

True
False

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Communication Systems
When the length of antenna is a whole wavelength

The radiation at right angles is maximum
The radiation at right angles is zero
The radiation is zero in all directions
The radiation is maximum in all directions

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