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A 22-Gauge Copper Wire Has a Radius of 0 ρ\rho = 172 * 10-8

Question 15

Multiple Choice

A 22-gauge copper wire has a radius of 0.645 mm,is 5.00 m long,and has a resistivity ρ\rho = 1.72 * 10-8 Ω\varOmega m.The maximum current for which this wire is rated is 0.920A.What is the maximum electric potential difference that may be applied to this wire without overloading it?


A) 0.0605 V
B) 0.112 V
C) 0.242 V
D) 0.342 V
E) 0.561 V

Correct Answer:

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