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.

“Since you have asked multiple question, we will solve the first question for you. If you want any…

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?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 74AP: A wire with a resistance of 5.0 is drawn out through a die so that its new Length is twice times...

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Question

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?
12.) A lightning strike hits the ground with a current of 30,000 A. If the ground has a resistance
of 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 J
of energy, determine the current running through the coffee maker.

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