Which instrument measures and displays voltage (AC peak-to-peak values) in waveforms of a wave generating circuit?

Which instrument measures and displays voltage (AC peak-to-peak values) in waveforms of a wave generating circuit?

• A. Multimeter
• B. Oscilloscope
• C. Voltmeter
• D. Ammeter

Answer: (B)

An oscilloscope is used because it visualizes voltage as a function of time, so you can see the actual waveform of the signal. This display lets you read the peak-to-peak voltage directly by measuring the vertical distance between the highest point and the lowest point on the waveform, and you can also observe the waveform shape, timing, and any distortions. Other instruments provide a single voltage value (often RMS for AC) or measure current, but they don’t show the waveform itself, so they can’t directly reveal peak-to-peak values or the full time-based behavior of the circuit.

An oscilloscope is used because it visualizes voltage as a function of time, so you can see the actual waveform of the signal. This display lets you read the peak-to-peak voltage directly by measuring the vertical distance between the highest point and the lowest point on the waveform, and you can also observe the waveform shape, timing, and any distortions.

Other instruments provide a single voltage value (often RMS for AC) or measure current, but they don’t show the waveform itself, so they can’t directly reveal peak-to-peak values or the full time-based behavior of the circuit.