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- Subject
- Modulation and Demodulationelectrical-engineering-mcqs › modulation-and-demodulation
- Published
- 20 Dec 2018
- Last updated
- 28 May 2026
Explanation
The intermediate frequency is chosen as the difference frequency because lower frequencies are easier to amplify with stability and selectivity, making option B correct. The sum frequency is generally too high for practical amplification and filtering.
More Modulation and Demodulation MCQs
Practice related questions from the same subject.
- 1.In a TRF radio receiver, to which frequency are the RF and detection sections typically tuned?
- 2.What is the power contained in the sidebands according to the previous question?
- 3.Which type of modulation is used for the audio signal in television broadcasting?
- 4.Where is the diode detector typically located in an AM radio receiver circuit?
- 5.What is the power contained in the sidebands according to the previous question?
- 6.What does modulation involve when a low-frequency signal influences a carrier wave?
- 7.What is the primary benefit of Frequency Modulation (FM) compared to Amplitude Modulation (AM)?
- 8.What does the superheterodyne principle involve?
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