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A 20-W Platinum Wire at 20 °\degree C with a Temperature Coefficient of Resistivity of 3

Question 7

Multiple Choice

A 20-W platinum wire at 20 °\degree C with a temperature coefficient of resistivity of 3.9 x 10-3 ( °\degree C) -1 will have what resistance at 100 °\degree C?


A) 14 W
B) 20 W
C) 26 W
D) 28 W

Correct Answer:

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