A copper wire of radius a = 0.273 mm has an aluminum jacket of outer radius b = 0.399 mm. There is a current i = 2.82 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 1080-m and 2.75 x 10-80-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V = 17.0 V between the ends maintains the current, what is the length in meters of the composite wire?
A copper wire of radius a = 0.273 mm has an aluminum jacket of outer radius b = 0.399 mm. There is a current i = 2.82 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 1080-m and 2.75 x 10-80-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V = 17.0 V between the ends maintains the current, what is the length in meters of the composite wire?
Chapter9: Current And Resistance
Section: Chapter Questions
Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...
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