The current flowing through the resistor R = 100 ± 0.3% Ω is I = 2 ± 4% A. The limiting error in the power dissipation in the resistor R is
- A. 4.3%
- B. 16.9%
- C. 5.6%
- D. 8.3%
Answer: D. 8.3%
Explanation: Power P = I² R. Maximum relative uncertainty δP/P = 2(δI/I) + δR/R = 2(4%) + 0.3% = 8.3%.