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%