Electrical Engineering XYZ MCQs
The steady state error due to ramp input for a type two system is equal to:
- Infinite
- Constant
- Zero
- Nonzero number
Correct answer: 3. Zero
Explanation:
- Steady-state error is the difference between the desired output and the actual output of a system when the input has reached a steady state (i.e., a constant or ramp input over a long period).
- A type 2 system is characterized by having two integrators in its open-loop transfer function.
- When a ramp input is applied to a type 2 system, the steady-state error is zero. This is because the double integration of a ramp input results in a term that goes to infinity, canceling out any constant error that may exist.
Therefore, the correct answer is Zero.