A 18.0 m length of wire consists of 9.0 m of copper followed by 9.0 m...

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A 18.0 m length of wire consists of 9.0 m of copper followed by 9.0 m...

A 18.0 m length of wire consists of 9.0 m of copper followed by 9.0 m of aluminum, both of diameter 1.3 mm . A voltage difference of 82 mV is placed across the composite wire.

Part a: What is the total resistance (sum) of the two wires? Express your answer using two significant figures.

Part B: What is the current through the wire? Express your answer using two significant figures.

Part C: What are the voltages across the aluminum part and across the copper part? Express your answer using two significant figures. Enter your answers numerically separated by a comma.

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