Physics · Signal Processing

What is the primary difference between analog and digital signals?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Analog signals can only be transmitted through optical fibers.
2Analog signals are less susceptible to environmental noise than digital signals.
3Analog signals vary continuously over time, while digital signals represent discrete values at specific intervals.✓
4Analog signals consist of binary digits, whereas digital signals consist of continuous waves.

Correct answer

Analog signals vary continuously over time, while digital signals represent discrete values at specific intervals.

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