Question

Given a AC voltage waveform. The Volts/Div knob set a 5 volts and the Time/Div knob set at 2 mS. If Frequency is the reciprocal of time and the number of division from the beginning of the wave to the ending of the wave is 7.2 divisions, what is the frequency.

Answer 1

Therefore, the frequency of the AC voltage waveform is approximately 69.44 Hz.

Step-by-step explanation:

Total time period = 2 ms/division x 7.2 divisions

Total time period = 14.4 ms

The formula for frequency is the reciprocal of time:

Frequency = 1 / Time period

Frequency = 1 / 14.4 ms

Converting ms to seconds:

Frequency = 1 / (14.4 ms * 10^-3 s/ms)

Frequency = 1 / (0.0144 s)

Frequency = 69.44 Hz