(a) A 34.5-m length of copper wire at 20.0C has a radius
Chapter 17, Problem 17.27(choose chapter or problem)
(a) A 34.5-m length of copper wire at 20.0C has a radius of 0.25 mm. If a potential difference of 9.0 V is applied across the length of the wire, determine the current in the wire. (b) If the wire is heated to 30.0C while the 9.0-V potential difference is maintained, what is the resulting current in the wire?
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