the resistance R=V/I where V=(100+-5)V and I=(10+-0.2)A find the percentage error in R
Hey!
As we know, resistance is the ratio of voltage used and current flowing through the circuit. So,
R = V/I
By error calculation (division formula)
DeltaR/R = [(Delta V) /V] *100 +[(delta I) /I] *100
= (5/100)*100 + (0.2/10)*100
= 5 + 2
=7%
So, percentage error in resistance (R) = +- 7%.
Hope it helped to clear your delimma.
Thank you