When the temperature is 130 degree C, the resistance of a resistor is 45 ohms. When the temperature is increased to 200 degrees C, the resistance increases to 69 ohms. Find the temperature coefficient of the resistor. a. 0.047 /C b. 0.067 / C c. 0.053 /C d. 0.032 /C

When the temperature is 130 degree C, the resistance of a resistor is 45 ohms. When the temperature is increased to 200 degrees C, the resistance increases to 69 ohms. Find the temperature coefficient of the resistor. a. 0.047 /C b. 0.067 / C c. 0.053 /C d. 0.032 /C

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 20P: A car battery with a 12-V emf and an internal resistance of 0.050 is being charged with a current...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

When the temperature is 130 degree C, the resistance of a resistor is 45 ohms. When the temperature is
increased to 200 degrees C, the resistance increases to 69 ohms.
Find the temperature coefficient of the resistor.
a. 0.047 /C
b. 0.067 / C
c. 0.053 / C
d. 0.032 /C

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