A car battery does 400 J of work on the charge passing through it as it starts an engine. Part A If the emf of the battery is 12 V, how much charge passes through the battery during the start? Express your answer using two significant figures. V—| ΑΣΦ AQ= Submit Part B O increase decrease Submit Request Answer If the emf is doubled to 24 V, does the amount of charge passing through the battery increase or decrease? Part C ✓ Correct Previous Answers By what factor? Express your answer using two significant figures. O O O O O decrease by a factor of √2 O decrease by a factor of 2 O decrease by a factor of 2√2 O decrease by a factor of 4 ? O decrease by a factor of 8 C с

A car battery does 400 J of work on the charge passing through it as it starts an engine. Part A If the emf of the battery is 12 V, how much charge passes through the battery during the start? Express your answer using two significant figures. V—| ΑΣΦ AQ= Submit Part B O increase decrease Submit Request Answer If the emf is doubled to 24 V, does the amount of charge passing through the battery increase or decrease? Part C ✓ Correct Previous Answers By what factor? Express your answer using two significant figures. O O O O O decrease by a factor of √2 O decrease by a factor of 2 O decrease by a factor of 2√2 O decrease by a factor of 4 ? O decrease by a factor of 8 C с

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 40P: A typical cell phone consumes an average of about 1.00 W of electrical power and operates on 3.80 V....

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To recharge a 12 V battery, a battery charger must move 3.2 ✕ 105 C of charge from the negative terminal to the positive terminal. How much work is done by the battery charger? Express your answer in joules.
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