Signalling and communicationQuestion 239 of 1506

What does the unit “baud” measure?

  1. Volts per metre of cable
  2. Bits per second in every case
  3. Signal changes per second
  4. Data words per minute only
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Correct answer: Signal changes per second

Baud counts changes of the signal. It is not always the same as bits per second.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 14.4: Electrical Signal Types

Practice signalling and communication

Questions last reviewed: 18 October 2026