Electronics - Operational Amplifiers - Discussion

Discussion Forum : Operational Amplifiers - General Questions (Q.No. 39)
39.
When a capacitor is used in place of a resistor in an op-amp network, its placement determines:
open- or closed-loop gain
integration or differentiation
saturation or cutoff
addition or subtraction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Bhovani vijay said:   1 decade ago
When capacitor is used in place off i/p resistor than it is differentiator.

When it is used in place of feedback resistor than it is integrator.

Mansi said:   1 decade ago
When a capacitor is used in place of a resistor in an op-amp network, there capacitance defined the measure of a capacitor's opposition to change in voltage hence, greater the capacitance, the more the opposition. Capacitors oppose voltage change by creating current in the circuit: that is, they either charge or discharge in response to a change in applied voltage. So, the more capacitance a capacitor has, the greater its charge or discharge current will be for any given rate of voltage change across it.

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