If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is
A)not necessarily stable
B)stable
C)unstable
D)always unstable

Question

Quizplus · Accepted Answer

A system is not necessarily stable if the output remains below a certain level for all time, as stability also requires that the output eventually settles to a steady state or equilibrium.

If a Step Function Is Applied to the Input of a System