MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A certain laboratory experiment requires an aluminum wire of length of 30.0 m and a resistance of 4.40 Q at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8 Q m.) mm Need Help? Read It

MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A certain laboratory experiment requires an aluminum wire of length of 30.0 m and a resistance of 4.40 Q at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8 Q m.) mm Need Help? Read It

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 1PE: What is the current in milliamperes produced by the solar cells of a pocket calculator through which...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

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MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
A certain laboratory experiment requires an aluminum wire of length of 30.0 m and a resistance of 4.40 Q at 20.0°C. What diameter
wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8 Q m.)
mm
Need Help?
Read It

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