The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as A. rise time B. decay time C. binary level transition period D. propagation delay E. None of the above

The correct answer is: B. decay time

The decay time is the time required for

a pulse to decrease from 90 to 10 percent of its maximum value. It is also known as the fall time or the settling time. The decay time is important in digital circuits because it determines how quickly a signal can change state.

The rise time is the time

required for a pulse to increase from 10 to 90 percent of its maximum value. The propagation delay is the time required for a signal to travel from one point to another in a circuit.

The binary level transition period is the time required for a signal to change from one binary level to another. It is equal to the sum of the rise time and the decay time.

None of the above is the correct answer because it does not describe the time required for a pulse to decrease from 90 to 10 percent of its maximum value.