EMJ17103/4 Quiz 2 - Op-Amp (Part II)

What is the closed-loop gain formula for an inverting amplifier?

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What does the term A_ol represent in the context of operational amplifiers?

• Output impedance

• Input impedance

• Closed-loop gain

• Open-loop gain

In a voltage-follower amplifier, what is the value of B?

• 0

• Infinity

• 1

• 2

What is the formula for the overall input impedance Z_in​(NI) of a non-inverting amplifier including the effect of feedback?

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What is the formula for the overall input impedance, Z_in, of an inverting amplifier?

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How does the output voltage of an ideal differentiator relate to the input voltage?

• It is equal to the input voltage

• It is proportional to the rate of change of the input voltage

• It is the square of the input voltage

• It is the integral of the input voltage

What is the output voltage, V_out​, of a summing amplifier with two inputs, V₁​ and V₂​, each connected through resistors R₁​ and R₂​, and a common feedback resistor, R_f​?

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In a summing amplifier, if R_f is larger than the input resistors, what is the gain?

• 0

• 1

• R / R_f

• R_f / R

What is the output voltage of an op-amp differentiator when the input is a triangular wave?

• It is a square wave

• It is zero

• It is a sine wave

• It is a triangular wave

If a constant voltage is applied to an ideal integrator, what is the output response over time?

• It produces a sinusoidal output

• It produces a linear ramp output

• It produces a constant voltage

• It produces a square wave