Operational Amplifier » Exercise – 1
21. A certain inverting amplifier has a closed loop voltage gain of 25. The OP-amp has an open-loop voltage gain of 100,000. If an OP-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain ……….
(a) doubles
(b) drops to 12.5
(c) remains at 25
(d) increases slightly
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