Q20.A sinusoidal carrier voltage is amplitude modulated. The resultant amplitude modulated wave has maximum and minimum amplitude of 120 V and 80 V respectively. The amplitude of each side band is : (1) 15 V (2) 10 V (3) 20 V (4) 5 V
What This Question Tests
This question tests the understanding of amplitude modulation, specifically how to calculate the amplitude of sidebands from the maximum and minimum amplitudes of the modulated wave.
Concepts Tested
Formulas Used
A_max = A_c (1+μ)
A_min = A_c (1-μ)
A_sideband = μA_c/2
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📋 Question Details
- Chapter
- Communication Systems
- Topic
- Amplitude modulation
- Year
- 2023
- Shift
- 30 Jan Shift 1
- Q Number
- Q20
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 15: Communication Systems
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