If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost? (a) To burn a 80.0-W lightbulb for 24 h. $ (b) To operate an electric oven for 3.8 h if it carries a current of 20.0 A at 220 V. $

If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost? (a) To burn a 80.0-W lightbulb for 24 h. $ (b) To operate an electric oven for 3.8 h if it carries a current of 20.0 A at 220 V. $

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 36P: If electrical energy costs 0.12 per kilowatt-hour, how much does it cost to (a) burn a 100-W...

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If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost?

(a) To burn a 80.0-W lightbulb for 24 h.
$

(b) To operate an electric oven for 3.8 h if it carries a current of 20.0 A at 220 V.
$

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