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Explain why R = R0 (1 + ??T) for the temperature variation
Chapter 20, Problem 12(choose chapter or problem)
QUESTION:
Problem 12CQ
Explain why R = R0 (1 + αΔT) for the temperature variation of the resistance R of an object is not as accurate as ρ = ρ0 (1 + αΔT) , which gives the temperature variation of resistivity ρ
Questions & Answers
QUESTION:
Problem 12CQ
Explain why R = R0 (1 + αΔT) for the temperature variation of the resistance R of an object is not as accurate as ρ = ρ0 (1 + αΔT) , which gives the temperature variation of resistivity ρ
ANSWER:
Solution 12CQ
Step 1 of 3
The variation in resistivity due change in temperature is given as,
=0(1 + )
Here, 0 is the initial resistivity, the temperature coefficient of resistivity is, is the final resistivity after the temperature change .