Determine the amount of electrical energy (in J) used by the following devices when operated for the indicated times. Express your answer to a whole number. a. Hair dryer (1200 W) - operated for 3 minutes Answer: Joules b. home speaker (25 W) - operated for 4 hours Answer: Joules c. X-Box video game player (180 W) - operated for 2 hours Answer: Joules d. 42-inch LCD television (200 W) - operated for 3 hours Answer: Joules

Determine the amount of electrical energy (in J) used by the following devices when operated for the indicated times. Express your answer to a whole number. a. Hair dryer (1200 W) - operated for 3 minutes Answer: Joules b. home speaker (25 W) - operated for 4 hours Answer: Joules c. X-Box video game player (180 W) - operated for 2 hours Answer: Joules d. 42-inch LCD television (200 W) - operated for 3 hours Answer: Joules

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 22P

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