Question: What does the term \'propagation delay\' refer to in digital circuits?

Options:

1. Time taken for a signal to travel
2. Time taken for a circuit to reset
3. Time taken for a signal to stabilize
4. Time taken for power to reach the circuit

Correct Answer: Time taken for a signal to travel

Solution:

Propagation delay is the time taken for a signal to travel through a circuit from input to output.