7. A piece of material with a square cross-section measuring 1 mm on each side has a length of 1 m. What is the resistance of this material if it were made of aluminium? Fused quartz? Finally, calculate the current through each piece of material if a potential difference of 1 volt is applied over its length.

7. A piece of material with a square cross-section measuring 1 mm on each side has a length of 1 m. What is the resistance of this material if it were made of aluminium? Fused quartz? Finally, calculate the current through each piece of material if a potential difference of 1 volt is applied over its length.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 36PE: A copper wire has a resistance of 0.500at 20.0°C, and an iron wire has a resistance of 0.525at the...

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