NSEP · Physics · Units and Measurements
Absolute, relative, percentage errors and propagation of errors.
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Q1 · Errors and Uncertainty · HARD
Two resistances R₁ = (10 ± 0.2) Ω and R₂ = (15 ± 0.3) Ω are connected in series. The equivalent resistance with error is:
Q2 · Errors and Uncertainty · MEDIUM
The radius of a sphere is measured as (5.0 ± 0.1) cm. The percentage error in its volume is approximately:
Q3 · Errors and Uncertainty · EASY
Random errors in measurements can be reduced by:
Q4 · Errors and Uncertainty · EASY
If the measured values of two quantities are A ± ΔA and B ± ΔB, the maximum fractional error in A/B is: