emperature and Current A tungsten wire with resistance R_0, at T_0 = 20◦C, and temperature coefficient α = 4.5×10^−3 (◦C)^−1 is connected to a source, ε of negligible internal resistance. How much does the initial current, I_0, change when the temperature of the wire is raised by 60%? How about the change in the power dissipated by the tungsten wire
emperature and Current A tungsten wire with resistance R_0, at T_0 = 20◦C, and temperature coefficient α = 4.5×10^−3 (◦C)^−1 is connected to a source, ε of negligible internal resistance. How much does the initial current, I_0, change when the temperature of the wire is raised by 60%? How about the change in the power dissipated by the tungsten wire
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter27: Current And Resistance
Section: Chapter Questions
Problem 27.75AP: Review. When a straight wire is warmed, its resistance is given by R = R0,[1 + a(T T0)] according...
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- Temperature and Current
A tungsten wire with resistance R_0, at T_0 = 20◦C, and temperature coefficient
α = 4.5×10^−3 (◦C)^−1 is connected to a source, ε of negligible internal resistance.
- How much does the initial current, I_0, change when the temperature of the wire is raised by 60%?
- How about the change in the power dissipated by the tungsten wire?
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