Suppose electrical power P is given by , where E is voltage and R is resistance. Approximate the maximum percent error in calculating the power if 120 volts are applied to a 5000-ohm resistor and the possible percent errors in measuring E and R are 8% and 2%, respectively.
A) 23%
B) 43%
C) 46%
D) 38%
E) 18%

Question

Suppose electrical power P is given by  , where E is voltage and R is resistance. Approximate the maximum percent error in calculating the power if 120 volts are applied to a 5000-ohm resistor and the possible percent errors in measuring E and R are 8% and 2%, respectively. ​
A) 23% 
B) 43% 
C) 46% 
D) 38% 
E) 18%

Quizplus · Accepted Answer

The Answer of Suppose electrical power P is given by  , where E is voltage and R is resistance. Approximate the maximum percent error in calculating the power if 120 volts are applied to a 5000-ohm resistor and the possible percent errors in measuring E and R are 8% and 2%, respectively. ​
A) 23% 
B) 43% 
C) 46% 
D) 38% 
E) 18%

Suppose Electrical Power P Is Given by , Where