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  3. a cylindrical aluminum pipe of length 1.42 m has a

A cylindrical aluminum pipe of length 1.42 m has an inner radius of 1.60 ×10-3 m...

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Physics

A cylindrical aluminum pipe of length 1.42 m has an inner radiusof 1.60 ×10-3 m and an outer radius of 3.39×10-3 m. The interior of the pipe is completely filledwith copper. What is the resistance of this unit? (Hint:Imagine that the pipe is connected between the terminals of abattery and decide whether the aluminum and copper parts of thepipe are in series or in parallel.)

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3.9 Ratings (513 Votes)
In this case potential difference across both wires is same So both wires are connected in parallel with each other Now we know that in parallel circuit 1Req 1R1 1R2 Req R1R2R1 R2    See Answer
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