OPAMP Quiz

What type of amplifier is an OPAMP?

• Differential amplifier

• Oscillator

• Rectifier

• None of the above

At what voltage does an OPAMP typically operate?

• High voltage (~ 100 KV)

• Medium voltage (~ 220 Volt)

• Low voltage (~ 12 Volt)

• Very high voltage (~ 10 mili Volt)

The voltage gain of an ideal operational amplifier is:

• Infinite

• Very high

• Low

• Very low

The bandwidth of an ideal operational amplifier is:

• Infinite

• Very high

• Low

• Very low

What is the output impedance of an ideal operational amplifier?

• Infinite

• Very high

• Low

• Zero

The CMRR of an ideal operational amplifier is:

• Infinite

• Very high

• Low

• Very low

What is the slew rate of an ideal op-amp?

• Infinite

• Very high

• Low

• Zero

An operational amplifier (op-amp) is classified as a:

• Voltage-controlled voltage source (VCVS)

• Voltage-controlled current source (VCCS)

• Current-controlled voltage source (CCVS)

• Current-controlled current source (CCCS)

Applications of Op-Amps:

• • Only +ve Voltage

• • Only –ve voltage

• Dual power supply, i.e., ± Vcc

• None of the above

What does the term 'virtual ground' refer to in the context of an op-amp?

• The terminal is directly connected to the ground.

• The terminal is not physically connected to the ground, but its voltage is zero because the other terminal is grounded due to the properties of the op-amp.

• Both (a) and (b)

• None of the above