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5) A 1500 W electric hair dryer is designed to work in the UnitedStates, where the AC voltage is 120 V rms. What power is dissipatedin the hair dryer when it is plugged into a 240 V rms socket inEurope ?


10) A hair dryer has a power rating of 1200 W at 120 V rms. Assumethe hair dryer circuit contains only resistance.

a) What is the resistance of the heating element ?

b) What is the rms current drawn by the hair dryer ?

c) What is the maximum instantaneous power that the resistance mustwithstand ?

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Nestor Rutherford
Nestor RutherfordLv2
16 Feb 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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