Principles of Physics 11th ISV Edition Β· Current and Resistance Β· Problem 15
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Walker, Halliday & Resnick β Current and Resistance: Problem 15
15 A heater contains a Nichrome wire (resistivity \(5.0 \times 10^{-7} \Omega \cdot \text{m}\)) of length 5.85 m, with an end-to-end potential difference of 112 V, and with a dissipation power of 4000 W. (a) What is the wireβs cross-sectional area? (b) If 100 V is used to obtain the same dissipation rate, what should the length be?
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Given: 15 A, 5.85 m, 112 V, 4000 W, 100 V
Find: (a) What is the wireβs cross-sectional area?; (b) If 100 V is used to obtain the same dissipation rate
This problem covers key concepts in Current and Resistance from Principles of Physics 11th ISV Edition by Walker, Halliday & Resnick. The step-by-step solution involves applying fundamental principles and systematic analysis to arrive at the correct answer. Full solution available with a Solution Pass.
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Principles of Physics Β· 11th ISV Edition
Author: Walker, Halliday & Resnick
Publisher: Wiley
Chapter: Current and Resistance