AP EAMCET · PHYSICS · Communication System
A signal of frequency \(10 \mathrm{kHz}\) and peak voltage \(10 \mathrm{~V}\) is used to amplitude modulate a carrier of frequency \(1 \mathrm{MHz}\) and peak voltage \(20 \mathrm{~V}\). The side-band frequencies in \(\mathrm{kHz}\) are
- A 1010,990
- B 910,1090
- C 10,11
- D \(1.01,0.99\)
Answer & Solution
Correct Answer
(A) 1010,990
Step-by-step Solution
Detailed explanation
Given, frequency of signal, \(f_s=10 \mathrm{kHz}\) peak voltage, \(V_p=10 \mathrm{~V}\) carrier frequency, \(f_c=1 \mathrm{mHz}\) and peak voltage, \(V_c=20 \mathrm{~V}\) \(\therefore\) The side band frequencies are given as \(f=f_c \pm f_s\) Putting the given values, we get…
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