21. An integrator circuit
(a) uses a resistor in its feedback circuit.
(b) uses an inductor in its feedback circuit.
(c) uses a capacitor in its feedback circuit.
(d) uses a resistor in its feedback circuit or uses a capacitor in its feedback circuit
22. Nota
23. Nota
24. An op-amp has an open-loop gain of 90,000. Vsat = ±13 V. A differential voltage of 0.1 V p-p is applied between the inputs. What is the output voltage?
(a) 13 V
(b) –13 V
(c) 13 Vp-p
(d) 26 Vp-p
25. A differentiator is used to measure
(a) the sum of the input voltages.
(b) the difference between two voltages.
(c) the area under a curve.
(d) the rate of change of the input voltage.
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