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27 Nov 2019

A 18.0 -m length of wire consists of 9.0 m of copper followed by9.0 m of aluminum, both of diameter 1.3 mm. A voltage difference of95 mV is placed across the composite wire.

A) What is the total resistance (sum) of the two wires?
B) What is the current through the wire?
C) What is the voltage across the copper part?
D) What is the voltage across the aluminum part?

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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Number 10 copper wire ( radius 1.3mm) is commonly used forelectrical installations in homes. (Resistivity of copper p = 1.7 x10^-8). Calculate the resistance per unit length this wire.
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