Bandwidth of FM Signal with Arbitrary m(t) Online Exam Quiz
Bandwidth of FM Signal with Arbitrary m(t) GK Quiz. Question and Answers related to Bandwidth of FM Signal with Arbitrary m(t). MCQ (Multiple Choice Questions with answers about Bandwidth of FM Signal with Arbitrary m(t)
Cosmic noise is caused by __
Options
A : Distant stars
B : Lightning discharge
C : Solar eruptions
D : Disturbances in the atmosphere
Phase distortion is important in __
Options
A : voice communication systems
B : color video receivers
C : audio receivers
D : radio reception
Sampling theorem finds application in __
Options
A : FM
B : PCM
C : AM
D : PM
Skin effect refers __
Options
A : the increase of wire resistance with frequency
B : the decrease of wire resistance with frequency
C : the uniform nature of wire resistance with frequency
D : the way radio signals travel across a flat surface
The channel capacity is exactly equal to which of the following?
Options
A : Bandwidth
B : Noise rate
C : Amount of information per second
D : Entropy
The frequency of local oscillator __
Options
A : can be either below or above the RF frequency
B : is below the RF frequency
C : is above the RF frequency
D : is fixed typically at 450KHz
The ionosphere consists of __ layer.
Options
A : negative charge
B : positive charge
C : no charge
D : neutral
The noise performance of a square law demodulator of AM signal is ___
Options
A : Identical with that of a synchronous detector
B : Better than that of an envelope detector
C : Better than that of a synchronous detector
D : Poorer than that of an envelope detector
Which of the following filter is used only at higher frequencies?
Options
A : Ladder
B : Crystal Gate
C : Half Lattice
D : Full Lattice
Which statement is true about thermal noise power?
Options
A : it is proportional to B
B : it is proportional to ?B
C : it is proportional to B?2
D : it is proportional to ?B?2
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