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E7G - Practical Circuits

Extra Class

Active filters and op-amps: gyrators, simulated inductors, inverting/non-inverting

12 questions | Updated: Feb 4, 2026

All E0A E1A E1B E1C E1D E1E E1F E2A E2B E2C E2D E2E E3A E3B E3C E4A E4B E4C E4D E4E E5A E5B E5C E5D E6A E6B E6C E6D E6E E6F E7A E7B E7C E7D E7E E7F E7G E7H E8A E8B E8C E8D E9A E9B E9C E9D E9E E9F E9G E9H

E7G01

What is the typical output impedance of an op-amp?

E7G02

What is the frequency response of the circuit in E7-3 if a capacitor is added across the feedback resistor?

E7G03

What is the typical input impedance of an op-amp?

E7G04

What is meant by the term “op-amp input offset voltage”?

E7G05

How can unwanted ringing and audio instability be prevented in an op-amp audio filter?

E7G06

What is the gain-bandwidth of an operational amplifier?

E7G07

What voltage gain can be expected from the circuit in Figure E7-3 when R1 is 10 ohms and RF is 470 ohms?

E7G08

How does the gain of an ideal operational amplifier vary with frequency?

E7G09

What will be the output voltage of the circuit shown in Figure E7-3 if R1 is 1,000 ohms, RF is 10,000 ohms, and 0.23 volts DC is applied to the input?

E7G10

What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 1,800 ohms and RF is 68 kilohms?

E7G11

What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 3,300 ohms and RF is 47 kilohms?

E7G12

What is an operational amplifier?