Exam-style question
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A signal-time graph displays a smooth, continuous wave that varies in amplitude. What type of signal does this graph represent?.
Model answer
What a good answer should say
- The graph represents an analogue signal, as it shows a continuous variation in voltage over time.
Explanation
Why this works
The evidence of a smooth, continuous wave indicates that the signal can take on any value within a range, which is typical of analogue signals. This implies that analogue signals can capture more detailed information compared to digital signals, but they are more susceptible to noise.
Thus, the conclusion is that the graph effectively demonstrates the characteristics of analogue signals.
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