What characteristic is important in an oscilloscope for displaying waveforms?

An oscilloscope is a critical tool for visually analyzing waveform signals, and several characteristics are essential in ensuring it functions effectively for this purpose. The correct answer suggests that all mentioned characteristics—voltage range, time base, and input impedance—play significant roles in displaying waveforms accurately.

The voltage range is crucial because it determines the maximum and minimum voltages the oscilloscope can measure. If the input signal lies outside this range, it may either saturate the display or not be captured correctly at all, leading to an inaccurate representation of the waveform.

The time base is equally important as it defines the horizontal scaling of the waveform on the display. Proper adjustment of the time base allows for better visualization of waveform frequency and duration. If the time base is not set correctly, waveforms may appear overly compressed or spread out, complicating the interpretation of signal timing and frequency.

Input impedance matters as well, particularly for ensuring that the oscilloscope does not load the circuit being measured. A high input impedance helps to prevent the oscilloscope from affecting the signal being tested, which is essential for obtaining accurate measurements and preserving the integrity of the waveform.

Given the importance of each of these characteristics—voltage range, time base, and input impedance—for