OZ_ELK3 Quiz

What is the primary function of an operational amplifier (op-amp)?

• Voltage controlled current source

• Current controlled current source

• Current controlled voltage source

• Voltage controlled voltage source

Which terminals of the op-amp are labeled with '+' and '-' signs?

• Feedback and input terminals

• Non-inverting and inverting terminals

• Power supply terminals

• Input and output terminals

What does the term 'open loop gain' refer to in an op-amp?

• The gain without any feedback

• The gain in the linear region

• The gain when feedback is applied

• The gain in the saturation region

In the ideal op-amp model, what is the input resistance?

• Zero

• Finite

• Dependent on the circuit

• Infinite

What is the output resistance of an ideal op-amp?

• High

• Low

• Zero

• Infinite

What happens to the output voltage in the saturation region of an op-amp?

• It oscillates

• It reaches a maximum value

• It becomes zero

• It increases linearly

What is the effect of negative feedback in an op-amp circuit?

• Increases gain

• Decreases gain

• Stabilizes gain

• Eliminates gain

In a non-inverting amplifier, how is the output voltage related to the input voltage?

• Vo = Vin/2

• Vo = 2Vin

• Vo = -Vin

• Vo = Vin

In an inverting amplifier, what is the relationship between the input and output voltages?

• Vo = Vin

• Vo = -Vin

• Vo = Vin/2

• Vo = 2Vin

What is the primary characteristic of an ideal op-amp?

• Infinite open loop gain

• Finite input resistance

• Zero input offset voltage

• Infinite output resistance