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📝 Amplitude Modulation(AM) during Analog to Analog conversion

📖 From Data Communication & Networks • 5. Analog Transmission • 16 questions available

Practice MCQs for Amplitude Modulation(AM) during Analog to Analog conversion. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-31

5
Easy Questions
7
Medium Questions
4
Hard Questions

📝 Sample Questions

Q1. In amplitude modulation, increasing the amplitude of the carrier while keeping the modulating signal constant primarily affects which characteristic of the transmitted signal?

🔹 A. Frequency
🔹 B. Power
🔹 C. Phase
🔹 D. Bandwidth

💡 Difficulty: easy | ✅ Correct: B

Q2. Suppose an AM transmitter uses a carrier frequency of 1 MHz and a modulation index of 0.8. If the modulating signal frequency doubles, what happens to the overall occupied bandwidth?

🔹 A. Remains unchanged
🔹 B. Increases by 50 kHz
🔹 C. Doubles
🔹 D. Decreases

💡 Difficulty: medium | ✅ Correct: C

Q3. Consider an AM system where the carrier frequency drifts by \\(+5\\) kHz due to oscillator instability, while the modulating signal remains at 5 kHz. How does this drift affect the positions of the sidebands relative to the original carrier?

🔹 A. Sidebands shift by +5 kHz
🔹 B. Sidebands remain unchanged
🔹 C. Upper sideband shifts by +5 kHz and lower sideband shifts by –5 kHz
🔹 D. Both sidebands merge into the carrier

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Aspects of Digital to Analog Conversion during Analog Transmission📝 Amplitude Shift Keying during Analog Transmission📝 Frequency Shift Keying during Analog Transmission📝 Phase Shift Keying during Analog Transmission📝 Quadrature Amplitude Modulation during Analog Transmission
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