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

Answer:

f = 1.8 10² Hz

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