Question

1. on the display, the vertical axis represents

a frequency
b voltage
c phase
d time

Explanation:

In a typical oscilloscope - like display, the vertical axis represents voltage. Frequency is usually related to the number of cycles per second and is not directly represented on the vertical axis. Phase is a measure of the relative timing of a waveform and is not the primary quantity on the vertical axis. Time is usually represented on the horizontal axis.

Answer:

B. voltage