Exam-style question
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Which of the following is a common source of noise in communication systems?.
- A.Thermal noise from electronic components
- B.Signal amplification
- C.Data encoding
- D.Modulation techniques
Model answer
What a good answer should say
- Thermal noise from electronic components
Explanation
Why this works
Thermal noise, also known as Johnson-Nyquist noise, is generated by the random motion of electrons in conductors and is a common source of noise in communication systems, affecting signal quality.
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