Experimenting with RC Combinations: Finding C & R Values

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Discussion Overview

The discussion revolves around an experiment aimed at determining the values of capacitance (C) and resistance (R) in a series RC combination using specific apparatus, including a known reference resistor, a variable frequency signal generator, and a digital multimeter. The participants are seeking guidance on the procedure and calculations involved in this experiment.

Discussion Character

  • Homework-related
  • Exploratory

Main Points Raised

  • One participant describes the experiment setup and expresses confusion about the procedure and calculations needed to find C and R.
  • Another participant questions how R, C, and frequency affect phase, suggesting that this is a relevant consideration for the calculations.
  • There is a reminder to consider the output impedance of the signal generator in the calculations.
  • Some participants note the need for the original poster to show some work before they can provide assistance.

Areas of Agreement / Disagreement

Participants generally agree that the original post is seeking help with a homework problem, but there is no consensus on the specific procedure or calculations required. Multiple viewpoints regarding the necessary considerations for the experiment remain unresolved.

Contextual Notes

There are limitations in the discussion, including a lack of detailed assumptions about the experiment setup and the specific mathematical steps required to solve for C and R. The nature of the phase relationship between R, C, and frequency is also not fully explored.

Clipse
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This is an experiment Ill have to write up later, unfortunately I was out for 2 weeks of lectures due to illness. This is the experiment;

Find the values of capacitance C and resistance R in a series combination, given he following apparatus;

1. the unknown RC combination (both in the same enclosed box),
2. a known, reference resistor, Rref,
3. a variable frequency signal generator (0-1000Hz),
4. a digital multimeter


An equation involving impedance that I can think of off the top of my head is;

I = (Emax . Sin(wt + &))/ |Z|



I really am completely stumped guys... I just need to know how to do the procedure and then the calculations should be ok... Any input would be GREATLY appreciated.
 
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Clipse said:
This is an experiment Ill have to write up later, unfortunately I was out for 2 weeks of lectures due to illness. This is the experiment;

Find the values of capacitance C and resistance R in a series combination, given he following apparatus;

1. the unknown RC combination (both in the same enclosed box),
2. a known, reference resistor, Rref,
3. a variable frequency signal generator (0-1000Hz),
4. a digital multimeter


An equation involving impedance that I can think of off the top of my head is;

I = (Emax . Sin(wt + &))/ |Z|



I really am completely stumped guys... I just need to know how to do the procedure and then the calculations should be ok... Any input would be GREATLY appreciated.

This seems to be a homework problem, so it is in the wrong forum. Anyway, how do R, C and frequency affect phase?
Don't forget to consider the output impedance of the generator in your calculations.
 
"This is an experiment Ill have to write up later, unfortunately I was out for 2 weeks of lectures due to illness." *wink,wink* My test's on Monday...how bout you? So...tired.
 
Pee-Buddy said:
"This is an experiment Ill have to write up later, unfortunately I was out for 2 weeks of lectures due to illness." *wink,wink* My test's on Monday...how bout you? So...tired.

You must show some work before we can help you.
 

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