Amplitude modulation 1
Authored by Manjunatha P
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amplitude modulation is
Change in amplitude of the carrier according to modulating signal
Change in frequency of the carrier according to modulating signal
Change in amplitude of the modulating signal according to carrier signal
Change in amplitude of the carrier according to modulating signal frequency
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The AM spectrum consists of
Carrier frequency
Upper side band frequency
Lower side band frequency
All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The circuit which is used to produce the amplitude modulation is______
Duplexer
Modulator
Amplifier
Mixer
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the line connecting the positive and negative peaks of the carrier waveform called?
Peak line
Maximum amplitude ceiling
Envelope
Modulation index
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the reference line for the modulating signal?
Zero line
Carrier peak line
Modulated peak line
Un-modulated peak line
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the amplitude of the modulating signal is greater than the amplitude of the carrier?
Decay
Distortion
Amplification
Attenuation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ratio between the modulating signal voltage and the carrier voltage is called?
Amplitude modulation
Modulation frequency
Modulation index
Ratio of modulation
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