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ISRO EC 2018:Communication System Booster Quiz 1
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Question 1
In the circuit shown, the positive angular frequency ω (in radians per second). at which magnitude of the phase difference between the voltages V1 and V2 equals 
radians, is ___.
radians, is ___. Question 2
The power spectral density of a real stationary random process .X(t) is given by
The value of the expectation
The value of the expectation
Question 3
In the given AM signal, find the power transmitted. The power transmitted by the carrier is 100 W.
Question 4
Consider an FM signal 
The maximum deviation of the instantaneous frequency from the carrier frequency 
is
The maximum deviation of the instantaneous frequency from the carrier frequency is Question 5
A time domain energy signal is defined as 
with energy equal to 12 Joule then the energy of the signal
is equal to
with energy equal to 12 Joule then the energy of the signalis equal to Question 6
Match the following.
Question 7
In time division multiplexing, the noise contribution of PM detector as compare to FM detector is
Question 8
Why do we need to modulate a wave before transmission?
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Jun 7ESE & GATE EC
