Voltage E = 220 V ± 1% and resistance R = 22 W ± 0.5% were measured in an electrical circuit with measuring devices. What is the uncertainty in calculating the electrical power expressed as P = E2 / R? A)%2.45 B)%2.53 C)%2.24 D)%2.35 E)%2.64
Voltage E = 220 V ± 1% and resistance R = 22 W ± 0.5% were measured in an electrical circuit with measuring devices. What is the uncertainty in calculating the electrical power expressed as P = E2 / R? A)%2.45 B)%2.53 C)%2.24 D)%2.35 E)%2.64
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Voltage E = 220 V ± 1% and resistance R = 22 W ± 0.5% were measured in an electrical circuit with measuring devices. What is the uncertainty in calculating the electrical power expressed as P = E2 / R?
A)%2.45
B)%2.53
C)%2.24
D)%2.35
E)%2.64
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