Question

What is the percentage error in the reading of a voltmeter that shows 239 volts for an

actual 245 volts?

Answer 1

Absolute error

$=|Actual- Measured \>value|\\=|239-245|=6$

$Percentage \>error=\frac{Absolute\> error}{Actual\>value}×100\%$

$=\frac{6}{245}×100\%=2.45\%$