Determine the amount of electrical energy (in Kw•hr) used by the following devices when operated for the indicated times. 1. Hair dryer (1500 W) - operated for 5 minutes 2. Electric space heater (950 W) - operated for 4 hours

Determine the amount of electrical energy (in Kw•hr) used by the following devices when operated for the indicated times. 1. Hair dryer (1500 W) - operated for 5 minutes 2. Electric space heater (950 W) - operated for 4 hours

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 24P

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Question

Determine the amount of electrical energy (in Kw•hr) used by the following devices when operated for the indicated times.
1. Hair dryer (1500 W) - operated for 5 minutes
2. Electric space heater (950 W) - operated for 4 hours

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