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How do you 'compound errors'?
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Jessticcles
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In a capacitors experiment for A2 we have to compound our errors as part of the coursework, and I'm not sure how to do that. We'll be using a pretty standard circuit for charging and discharging, so, an emf in series with a capacitor, a capacitor in series with an ammeter and in parallel with a voltmeter, and a switch to go from charging by the emf, to discharging across the circuit ( the circuit contains a resistor in parallel too ) I also think we'll be using a stopwatch. I know that generally the capacitor and resistor are the main sources of error and have their percentage errors on them, but I don't know how to compound all of the errors of all of the things. Help please!
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Joinedup
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The method for combine uncertainties depends on the formula you'll be using.
I think doing a search for "percentage uncertainty" would be fruitful as this is a very frequently asked question with a lot of good answers already here.
I think doing a search for "percentage uncertainty" would be fruitful as this is a very frequently asked question with a lot of good answers already here.
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Dalek1099
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(Original post by Jessticcles)
In a capacitors experiment for A2 we have to compound our errors as part of the coursework, and I'm not sure how to do that. We'll be using a pretty standard circuit for charging and discharging, so, an emf in series with a capacitor, a capacitor in series with an ammeter and in parallel with a voltmeter, and a switch to go from charging by the emf, to discharging across the circuit ( the circuit contains a resistor in parallel too ) I also think we'll be using a stopwatch. I know that generally the capacitor and resistor are the main sources of error and have their percentage errors on them, but I don't know how to compound all of the errors of all of the things. Help please!
In a capacitors experiment for A2 we have to compound our errors as part of the coursework, and I'm not sure how to do that. We'll be using a pretty standard circuit for charging and discharging, so, an emf in series with a capacitor, a capacitor in series with an ammeter and in parallel with a voltmeter, and a switch to go from charging by the emf, to discharging across the circuit ( the circuit contains a resistor in parallel too ) I also think we'll be using a stopwatch. I know that generally the capacitor and resistor are the main sources of error and have their percentage errors on them, but I don't know how to compound all of the errors of all of the things. Help please!
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