3) A power supply is used to pass a current of 1 A at 6 V through a mass of copper o 255 grams for 3 minutes. During this time the mass of copper is observed to rise by 10° C. (co=0.0093 cal/g°C) (Lab 10, Joule Heat). a) calculate the electrical energy in J expended by the circuit b) calculate the heat energy delivered to the Cu in calories c) calculate the ratio of answer a) to that of b) d) calc. the percentage difference in c). Use a theoretical value of 4.18 J/cal. %3D

3) A power supply is used to pass a current of 1 A at 6 V through a mass of copper o 255 grams for 3 minutes. During this time the mass of copper is observed to rise by 10° C. (co=0.0093 cal/g°C) (Lab 10, Joule Heat). a) calculate the electrical energy in J expended by the circuit b) calculate the heat energy delivered to the Cu in calories c) calculate the ratio of answer a) to that of b) d) calc. the percentage difference in c). Use a theoretical value of 4.18 J/cal. %3D

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 68PE: Integrated Concepts (a) What is the cost of heating a hot tub containing 1500 kg of water from...

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