Assignment 1.3: The voltage V(V ± ΔV) is measured (7.3 V ± 0.1V) and current I(I ± ΔI) is measured as (2.73 A ± 0.05 A). Calculate the resistance R by using Ohm’s law as R = V/I.
Solution
Put values in the given formula
To find final result in division, the percentage uncertainties are added. Therefore, percentage uncertainty in voltage 
Percentage uncertainty in current,
Add sums of percentage uncertainties, 1.37% + 1.83% = 3.2%
Therefore,
Now to convert to fractional uncertainty,
