The illustration below is a representation of an oscilloscope screen with two si
ID: 1419662 • Letter: T
Question
The illustration below is a representation of an oscilloscope screen with two signal traces. The top one is a sine wave from channel 1. The time base SEC/DIV scale has been set at 5 ms and the vertical sensitivity CH 1 VOLTS/DIV is set at 1 in the IX window. Consider the top channel 1 signal. What is the sine wave peak to peak voltage? What is the RMS voltage of the sine wave? What is the sine wave period T in ms and the frequency f in Hz? How many full sine waves would be present on the screen if the time base were changed from 5 ms/div to 10ms/div?Explanation / Answer
1: Peak-to-peak (pk-pk) is the difference between the maximum positive and the maximum negative amplitudes of a waveform.
So, Peak to peak voltage is 3 volt.
2:
RMS voltage = Peak to peak voltage /2.828 = 1.061 Volt.
3:
Wave period = 15 ms
4:
No, of sine waves = 90/15 = 6.
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