Measuring Voltage with an Oscilloscope: Channel A RMS Voltage

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Discussion Overview

The discussion revolves around measuring the RMS voltage of a signal using an oscilloscope, specifically focusing on the interpretation of the term "deduce the RMS voltage" in the context of Channel A readings.

Discussion Character

  • Technical explanation, Conceptual clarification, Homework-related

Main Points Raised

  • One participant seeks clarification on what is meant by "deduce the RMS voltage" and whether it involves calculating Vrms.
  • Another participant suggests that the oscilloscope can provide Vrms directly or allow for its calculation using Vmax.
  • A further contribution indicates that if the signal is a sine wave, Vrms can be calculated by dividing the amplitude by the square root of 2.

Areas of Agreement / Disagreement

Participants appear to agree that calculating or obtaining Vrms is relevant, but the specifics of how to deduce it remain somewhat unclear, with different methods proposed.

Contextual Notes

The discussion does not resolve the ambiguity surrounding the term "deduce" and the exact method for calculating Vrms, leaving some assumptions and definitions unaddressed.

Who May Find This Useful

Individuals interested in oscilloscope measurements, particularly in the context of electrical engineering or physics, may find this discussion relevant.

real-menace
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1. An oscilloscope is used to measure the voltage across
two components using Channel A and Channel B. Deduce the RMS voltage of the signal measured by
Channel A


I just want to know what they mean by "deduce the RMS voltage"

Do i need to calculate the Vrms?
 
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real-menace said:
Do i need to calculate the Vrms?

Based on the readings that you can get from the oscilloscope, you should either be able to get Vrms directly or Vmax to get Vrms.
 
It sounds like it, assuming it's a sine wave take your amplitude and divide it by the square root of 2.
 
ok Thanks for the reply :)
 

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