Suppose Electrical Power P Is Given by , Where

question 89

Multiple Choice

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%

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