Title: Op-amp Basics
Course: Electronics Theory (IC 102-IC 102) > Section: Assessments

Q: Identify the following Op-amp input mode.
- Common mode input
- Differential input
- Single ended input
A: Common mode input

Q: Identify the following Op-amp input mode.
- Common mode input
- Differential input
- Single ended input
A: Common mode input

Q: Identify the following Op-amp input mode.
- Common mode input
- Differential input
- Single ended input
A: Common mode input

Q: If 100mVac is applied to the input, what will be the output V?
- 100mVac (in phase)
- 110mVac (in phase)
- 100mVac (out of phase)
- 110mVac (out of phase)
A: 100mVac (in phase)

Q: If -10Vdc is applied to the input, what will be the output V?
- 10Vdc
- 11Vdc
- -10Vdc
- -11Vdc
A: 10Vdc

Q: What is the gain of this op-amp?
- 100
- It will immediately go into saturation
- 1
- Op-amp is shorted, it will not work in this configuration
A: 100

Q: What type of op-amp configuration is this?
- Inverting op-amp
- Non-inverting op-amp
- Voltage follower
A: Inverting op-amp

Q: If the Rf resistor where to open in the last question, what would happen to the output voltage?
- It would stay the same
- The output would go to + saturation and - saturation
- It would not operate
- It would double
A: It would stay the same

Q: What is the gain of the op-amp if the value of Rf = 220K ohms and the value of Rin = 10K ohms?
- 20
- 22
- Less than 1
- 15
A: 20

Q: What type of op-amp configuration is this?
- Inverting op-amp
- Non-inverting op-amp
- Voltage follower
A: Inverting op-amp

Q: With the resistors of a value of Rf = 68K ohms and the value of Rin = 4.7K ohms what is the output of the op-amp with a given input of 100mVac?
- 1.45Vac (out of phase)
- 14.5V (in phase)
- 100mVac (out of phase)
- 1.45Vac (in phase)
A: 1.45Vac (out of phase)

Q: With the same resistor values 220K ohm and 10K ohm what is the output with a 0.6Vdc input?
- Op-amp will not amplify DC
- 12Vdc
- 13.2Vdc
- -13.2Vdc
A: Op-amp will not amplify DC

Q: If the value of Rf = 1M ohm and the value of Rin = 10K ohms, what is the output of the op-amp if the input is 10mVac?
- 1Vac (out of phase)
- 1Vac (in phase)
- 1Vdc
- 1.01Vac (in phase)
A: 1Vac (out of phase)

Q: If the value of Rf = 33K ohms and the value of Rin = 1K ohms what is the gain of the op-amp?
- 3.3
- 33
- 34
- 4.3
A: 3.3

Q: If the value of Rf = 47K ohms and the value of Rin = 4.7K ohms, what is the output of the op-amp if the input is 0.5Vdc?
- -5Vdc
- 5.5Vdc
- 5Vdc
- -5.5Vdc
A: -5Vdc

Q: What type of op-amp configuration is shown?
- Inverting op-amp
- Non-inverting op-amp
- Voltage follower
A: Inverting op-amp