Operational Amplifier

Which of the following is NOT one of the basic properties of an ideal operational amplifier (op-amp)?

• a) Infinite open-loop voltage gain
• b) Infinite input impedance
• c) Zero output impedance
• d) Finite bandwidth

Which is the "Golden Rule" of an ideal op-amp?

• a) The output follows the input voltage exactly
• b) The input draws no current
• c) The output has zero noise contribution
• d) The input has infinite impedance

What is the purpose of the "Virtual ground" concept in op-amp analysis?

• a) To connect the op-amp ground to the circuit ground
• b) To simplify the analysis of op-amp circuits with positive feedback
• c) To simplify the analysis of op-amp circuits with shunt feedback
• d) To eliminate noise in op-amp circuits

What is the output dc offset voltage of an op-amp?

• a) The measured output voltage when the input is zero
• b) The difference between the positive and negative terminal voltages
• c) The voltage across the inputs with negative feedback
• d) The voltage drop across the power supply

Which property of an ideal op-amp allows the output to be adjusted and makes the voltage difference between the inputs zero?

• a) Infinite open-loop voltage gain
• b) Infinite bandwidth
• c) Zero output impedance
• d) Zero DC output offset

What does the "Infinite input impedance" property of an ideal op-amp imply?

• a) The input draws no current
• b) The input has a very high impedance
• c) The input can handle infinite voltage levels
• d) The input impedance is fixed at a high value

Which property of an ideal op-amp ensures that it doesn't introduce any noise into the circuit?

• a) Infinite open-loop voltage gain
• b) Zero noise contribution
• c) Infinite bandwidth
• d) Zero output impedance

What does the "Zero DC output offset" property of an ideal op-amp imply?

• a) The output is always zero
• b) The output offset is negligible for DC signals
• c) The output has zero impedance
• d) The output is independent of the input

How does the "Infinite bandwidth" property of an ideal op-amp affect its performance?

• a) It limits the range of frequencies the op-amp can handle
• b) It ensures that the op-amp works well only at high frequencies
• c) It allows the op-amp to handle a wide range of frequencies
• d) It decreases the overall gain of the op-amp

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

• a) Moderate impedance
• b) Zero impedance
• c) Infinite impedance
• d) Negligible impedance