It isn't 22.15, which makes your second 0.005 wrong.
Also, your first 0.005 was also wrong.
Percentage error = maximum error (in this case is x2 since there are two readings needed for a difference in temp) divided by the reading (in this case it is the difference in reading) x 100, i.e. 2 x 0.05 / 20 x 100
Also, your first 0.005 was also wrong.
Percentage error = maximum error (in this case is x2 since there are two readings needed for a difference in temp) divided by the reading (in this case it is the difference in reading) x 100, i.e. 2 x 0.05 / 20 x 100
Original post by Pigster
It isn't 22.15, which makes your second 0.005 wrong.
Also, your first 0.005 was also wrong.
Percentage error = maximum error (in this case is x2 since there are two readings needed for a difference in temp) divided by the reading (in this case it is the difference in reading) x 100, i.e. 2 x 0.05 / 20 x 100
Also, your first 0.005 was also wrong.
Percentage error = maximum error (in this case is x2 since there are two readings needed for a difference in temp) divided by the reading (in this case it is the difference in reading) x 100, i.e. 2 x 0.05 / 20 x 100
Hi, I don't understand why it is 0.05 because on the top of the sheet it says it will be one division, so wouldn't a be 0.1 and be be 0.2? And you have to calculate two answers so they are separate so why would you multiply it by 2?? Thanks
Original post by Pigster
You can read half of a division, hence half of 0.1.
You are measuring a temperature change - the initial temperature is subject to a +/-0.05 and the final temp is also subject to +/-0.05, overall, the uncertainty is 2x+/-0.05 i.e. +/-0.1.
You are measuring a temperature change - the initial temperature is subject to a +/-0.05 and the final temp is also subject to +/-0.05, overall, the uncertainty is 2x+/-0.05 i.e. +/-0.1.
What's the difference between using one division and half of a division? I know it is more precise but it says to use one divison also be wouldn't be the same as a because one division is 0.2 . Right? Thanks
(edited 8 years ago)
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