Three independent measurements of the resistance of a coil were recorded as
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
Three independent measurements of the resistance of a coil were recorded as 8.15Ω, 8.21Ω and 8.18Ω.
(i) Find the mean resistance of the coil.
(ii) Determine the absolute error in each individual reading and hence obtain the mean absolute error.
(iii) Calculate the relative error and the percentage error in the resistance.
(iv) Report the resistance of the coil with its uncertainty, expressing the final answer in proper significant figures.