Question

A sinusoidal voltage is displayed on an oscilloscope screen. The separation on the screen between two adjacent peaks is 5.5 divisions, and you notice that the sweep speed is set to 1 ms per division. What is the frequency of the sinusoidal voltage

Answer 1

f = 1.8 10² Hz

Step-by-step explanation:

With the readings of the oscilloscope screen we can calculate the period of the wave

T = #_divisions time_base

T = 5.5 1 10⁻³

T = 5.5 10⁻³ s

the period and frequency are related

f = 1 / T

f = 1 / 5.5 10⁻³

f = 1.8 10² Hz