Exam-style question
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What role does negative feedback play in an operational amplifier circuit?.
- A.It increases the output voltage.
- B.It decreases the input impedance.
- C.It controls the gain and improves stability.
- D.It eliminates the need for power supply.
Model answer
What a good answer should say
- It controls the gain and improves stability.
Explanation
Why this works
Negative feedback in op-amp circuits is crucial as it controls the gain and enhances stability, preventing oscillations and ensuring reliable performance in signal processing.
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