Answered: How much work is done by a 12-V…

How much work is done by a 12-V automobile battery in moving 5 x 1020 electrons from the positive terminal to the negative terminal?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 25P: A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of...

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Question

a. How much work is done by a 12-V automobile battery in moving 5 x 10²⁰ electrons from the positive terminal to the negative terminal?

b. The tungsten filament in an incandescent lamp has a resistance of 9.8 ohm at a room temperature of and a resistance of 132 ohm at normal operating temperature. Calculate the temperature of the heated filament. ∝20℃=0.0045/℃

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