Im asked to find the Peak-to-Peak voltage, the rms voltage, theperiod, and the F

Question

Im asked to find the Peak-to-Peak voltage, the rms voltage, theperiod, and the Frequency.
QUESTION: Suppose you see the trace on your oscilloscopescreen (graph given- Top peak at 100% and bottom peak at -20%). Youhave set the vertical scale to 20 volt per square and thehorizontal to 0.5 ms per square.
I'm unsure of what equation to use and what numbers I plug inwhere..
QUESTION: Suppose you see the trace on your oscilloscopescreen (graph given- Top peak at 100% and bottom peak at -20%). Youhave set the vertical scale to 20 volt per square and thehorizontal to 0.5 ms per square.
I'm unsure of what equation to use and what numbers I plug inwhere..

Explanation / Answer

the peak-to-peak voltage is Vo = 20 V per square the top peak is at 100% therefore we get Vo = 20 * (100/100) = 20 V the rms voltage is Vrms = (Vo/2) or Vrms = (20/1.414) = 14.1 V the horizontal peak is at -20% therefore the time periodis T = 0.5 ms - 0.5 * (20/100) ms = 0.4 ms the frequency is f = (1/T) = (1/0.4 * 10-3) = (1000/4) = 250Hz

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