Solution Found!
Answer: A hollow aluminum cylinder is 2.50 m long and has
Chapter 25, Problem 24E(choose chapter or problem)
Problem 24E
A hollow aluminum cylinder is 2.50 m long and has an inner radius of 2.75 cm and an outer radius of 4.60 cm. Treat each surface (inner, outer, and the two end faces) as an equipotential surface. At room temperature, what will an ohmmeter read if it is connected between (a) the opposite faces and (b) the inner and outer surfaces?
Questions & Answers
QUESTION:
Problem 24E
A hollow aluminum cylinder is 2.50 m long and has an inner radius of 2.75 cm and an outer radius of 4.60 cm. Treat each surface (inner, outer, and the two end faces) as an equipotential surface. At room temperature, what will an ohmmeter read if it is connected between (a) the opposite faces and (b) the inner and outer surfaces?
ANSWER:
Solution 24E
Introduction
We have to calculate the resistance in if current flows along the length and if current flows along the radius.
Step 1
The resistivity of the aluminum is given by .
Now the resistance is given by