sidential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for wiring receptacles. Such circuits carry currents as large as 20.0 A. If a wire of smaller diameter (with a higher gauge number) carried that much current, the wire could rise to a high temperature and use a fire. (Table of resistivities) (a) Calculate the rate at which internal energy is produced in 2.15 m of 12-gauge copper wire carrying a current of 20.0 A. w (b) Repeat the calculation for a 12-gauge aluminum wire. w Explain whether a 12-gauge aluminum wire would be as safe as a copper wire.
sidential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for wiring receptacles. Such circuits carry currents as large as 20.0 A. If a wire of smaller diameter (with a higher gauge number) carried that much current, the wire could rise to a high temperature and use a fire. (Table of resistivities) (a) Calculate the rate at which internal energy is produced in 2.15 m of 12-gauge copper wire carrying a current of 20.0 A. w (b) Repeat the calculation for a 12-gauge aluminum wire. w Explain whether a 12-gauge aluminum wire would be as safe as a copper wire.
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter26: Current And Resistance
Section: Chapter Questions
Problem 28P
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