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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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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