11.) A hair dryer with a resistance of 30 Q is plugged into a 120-volt socket. If the hair dryer isused for 10 minutes, how much electrical energy is used?12.) A lightning strike hits the ground with a current of 30,000 A. If the ground has a resistanceof 3,000 Q, determine how much electrical energy is exerted by the lightning strike in 0.02 s.13.) A coffee maker using a 120-V outlet is turned on for 30 minutes. If the maker uses 5,000 Jof energy, determine the current running through the coffee maker.

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Answered: 11.) A hair dryer with a resistance of…

11.) A hair dryer with a resistance of 30 Q is plugged into a 120-volt socket. If the hair dryer is used for 10 minutes, how much electrical energy is used?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.55P: Review. The healing element of an electric coffee maker operates at 120 V and carries a current of...

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