Which description best matches an analog signal?

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Multiple Choice

Which description best matches an analog signal?

Explanation:
An analog signal is defined by continuous variation in amplitude over time, meaning it can take any value within a range at every moment, producing a smooth, uninterrupted waveform. The description that fits best is continuing variation, because it captures both the endless range of values and the ongoing change over time. The idea of changing in discrete steps fits digital signals, which jump from one level to another rather than vary smoothly. While one might think a statement about maintaining continuous values is related, it doesn’t emphasize the time-based, smooth change that characterizes analog signals.

An analog signal is defined by continuous variation in amplitude over time, meaning it can take any value within a range at every moment, producing a smooth, uninterrupted waveform. The description that fits best is continuing variation, because it captures both the endless range of values and the ongoing change over time. The idea of changing in discrete steps fits digital signals, which jump from one level to another rather than vary smoothly. While one might think a statement about maintaining continuous values is related, it doesn’t emphasize the time-based, smooth change that characterizes analog signals.

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