Question

The %uncertainty in the potential difference is 3% and % uncertainty in resistance is 2% .the % uncertainty in the power is ?​

Answer 1

Answer:

Explanation:

% uncertainty in potential difference=3%

% uncertainty in resistance=2%

%uncertainty in power=????

We`ll use P=V²/R

P=(2×3)/2=6/2=8%

bcuz in division and subtraction,we add percentage uncertainties and in case of power we multiply percentage uncertainty with power.