Exam-style question
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In an ideal operational amplifier, what happens to the output when negative feedback is applied?.
- A.The output becomes saturated
- B.The output follows the input signal
- C.The output is always zero
- D.The output oscillates
Model answer
What a good answer should say
- The output follows the input signal
Explanation
Why this works
With negative feedback, the operational amplifier adjusts its output to minimize the difference between the inverting and non-inverting inputs, allowing the output to accurately follow the input signal.
Common mistake
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