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# 15 - fryer(vdf96 Circuits graves(6 This print-out should...

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fryer (vdf96) – Circuits – graves – (6) 1 This print-out should have 16 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001(part1of2)10.0points A 12 V automobile battery is connected to an electric starter motor. The current through the motor is 241 A. How much power does the motor dissipate? Correct answer: 2892 W. Explanation: Power is P = IV = (241 A) (12 V) = 2892 W . 002(part2of2)10.0points How much energy does the battery deliver to the motor during a 2 . 5 s period? Correct answer: 7230 J. Explanation: Let : V = 12 V , I = 241 A , and t = 2 . 5 s . Energy is E = P · T = ( IV ) t = (2892 W) (2 . 5 s) = 7230 J . 003 10.0points Does more current flow out of a battery than into it? Does more current flow into a light bulb than out of it? 1. The same for both correct 2. more; less 3. less; more 4. Less for both 5. More for both Explanation: Current flows through electrical devices just as water flows through a plumbing cir- cuit of pipes – the same flow on both sides.

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15 - fryer(vdf96 Circuits graves(6 This print-out should...

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