1. Tardigrade
  2. Question
  3. Physics
  4. The resistance R = (V/I) where V = (100 ± 5) V and I = (10 ± 0.2) A. The percentage error in R is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The resistance $R = \frac{V}{I}$ where $V = (100 \pm 5) V $ and $I = (10 \pm 0.2) A.$ The percentage error in R is

KEAMKEAM 2007Physical World, Units and Measurements

Solution:

$R =\frac{ v }{ I }$
$\frac{\Delta R }{ R } \times 100=\frac{\Delta V }{ V } \times 100+\frac{\Delta I }{ I } \times 100$
$=5 \%+2 \%=7 \%$