How is compensation of an oscilloscope probe performed?
A square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible✓Correct answer
A high frequency sine wave is displayed, and the probe is adjusted for maximum amplitude
A frequency standard is displayed, and the probe is adjusted until the deflection time is accurate
A DC voltage standard is displayed, and the probe is adjusted until the displayed voltage is accurate
Explanation
Compensation trims the probe's variable capacitor so that the probe and the oscilloscope input form a divider with the same ratio at every frequency. A square wave makes the error visible, because over- or under-compensation shows as overshoot or rounding where the trace should be flat.