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By What Percentage Does the Resistance of a Copper Wire α\alpha

Question 89

Multiple Choice

By what percentage does the resistance of a copper wire ( α\alpha = 3.9 ×\times 10-3/K) increase when its temperature increases from 20ºC to 100ºC?


A) 11%
B) 14%
C) 23%
D) 31%
E) 57%

Correct Answer:

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