1- Consider the measurement of pressure in a gas through measurement of its temperature T and density p Let the uncertainties of T and p be õT and op where p is determined from the ideal gas p=pRT. Derive an expression of uncertainty (error) in P and determine ôP/P. Suppose the uncertainty in ôp is 1% and in ôT is 2° at T=27°.
1- Consider the measurement of pressure in a gas through measurement of its temperature T and density p Let the uncertainties of T and p be õT and op where p is determined from the ideal gas p=pRT. Derive an expression of uncertainty (error) in P and determine ôP/P. Suppose the uncertainty in ôp is 1% and in ôT is 2° at T=27°.
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Transcribed Image Text:HOMEWORK:
1- Consider the measurement of pressure in a gas through
measurement of its temperature T and density p Let the
uncertainties of T and p be ôT and op where p is determined from
the ideal gas p=pRT. Derive an expression of uncertainty (error)
in P and determine ôP/P. Suppose the uncertainty in ôp is 1% and
in ôT is 2° at T=27°.
2- A battery supplies a current I to a resistor R with a potential
difference E, the percentage uncertainties in E, I and R are known
to be identical should the power drawn from the battery W be
calculated as E*I or I2*R. Derive an expression of uncertainty in
W.
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