Physics · Control Systems
Which of the following statements are TRUE with respect to a closed-loop control system? 1. A feedback element is present. 2. It maintains the desired output by comparing the actual output with the reference input. 3. The error detector output is always positive.
- 13 only
- 22 and 3 only
- 31 and 2 only✓
- 41 and 3 only
Correct answer
1 and 2 only
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