THE PRACTICE STUDIO
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PRACTICE / Error propagation
The same formula, a different uncertainty
The voltage and current used in R = V/I have independent relative standard uncertainties of 3% and 4%.
Find the approximate relative standard uncertainty of R.
Organize the givens & assumptions
- Relative standard uncertainty in V: 3%
- Relative standard uncertainty in I: 4%
- Inputs independent; R = V/I
Small uncertainties and independent inputs. No covariance term; the quoted quantities are standard uncertainties.
- A
- B
- C
- D
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