In Amplitude Modulation, the message signal V?(t) = 10 sin(2π × 10?t) volts and carrier signal V?(t) = 20 sin(2π × 10?t) volts. The modulated signal now contains the message signal with lower side band and upper side band frequency, therefore the bandwidth of modulated signal is α kHz. The value of α is:
In Amplitude Modulation, the message signal V?(t) = 10 sin(2π × 10?t) volts and carrier signal V?(t) = 20 sin(2π × 10?t) volts. The modulated signal now contains the message signal with lower side band and upper side band frequency, therefore the bandwidth of modulated signal is α kHz. The value of α is:
Option 1 -
200 kHz
Option 2 -
100 kHz
Option 3 -
0
Option 4 -
50 kHz
Asked by Shiksha User
-
1 Answer
-
Correct Option - 1
Detailed Solution:Bandwidth
= (ω? + ω? ) - (ω? - ω? )
= 2ω?
= 2 (2πf? )
= 4πf?
= 2π (2f? )
= 2π (2×10? ) rad/s
= 2 × 10? Hz
= 200 kHz
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 686k Reviews
- 1800k Answers