Question:
The statement that best describes the function of a non-inverting amplifier is:
The statement that best describes the function of a non-inverting amplifier is:
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Non-inverting = no phase change. It boosts your signal while keeping it “right side up”!
Updated On: May 28, 2025
- It reverses the phase of the input signal while amplifying it
- It amplifies the input signal without altering its phase
- It adds multiple input signals into a single output
- It generates a fixed waveform output regardless of the input
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The Correct Option is B
Solution and Explanation
A non-inverting amplifier is a type of Op-Amp configuration in which the input signal is applied to the non-inverting terminal (\(+\)) of the operational amplifier. The output signal is a scaled (amplified) version of the input with no phase reversal, meaning the input and output waveforms are in phase.
The voltage gain \( A_v \) for a non-inverting amplifier is given by: \[ A_v = 1 + \frac{R_f}{R_1} \] where \( R_f \) is the feedback resistor and \( R_1 \) is the resistor connected to ground. Other options explained:
The voltage gain \( A_v \) for a non-inverting amplifier is given by: \[ A_v = 1 + \frac{R_f}{R_1} \] where \( R_f \) is the feedback resistor and \( R_1 \) is the resistor connected to ground. Other options explained:
- (A) Describes an inverting amplifier, not a non-inverting one.
- (C) Refers to a summing amplifier configuration, not applicable here.
- (D) Fixed waveform generation is unrelated — that’s more relevant to oscillators or waveform generators.
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