1. The heating coils in a hair dryer are 0.82 cm in diameter, have a combined length of 0.5 m, and a total of 330 turns. (a) What is their total self-inductance assuming they act like a single solenoid? L= H (b) How much energy is stored in them when 5 A flows? W= J (c) What average emf opposes shutting them off if this is done in 5 ms (one-fourth of a cycle for 50 Hz AC)? EMF= mV

1. The heating coils in a hair dryer are 0.82 cm in diameter, have a combined length of 0.5 m, and a total of 330 turns. (a) What is their total self-inductance assuming they act like a single solenoid? L= H (b) How much energy is stored in them when 5 A flows? W= J (c) What average emf opposes shutting them off if this is done in 5 ms (one-fourth of a cycle for 50 Hz AC)? EMF= mV

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 64PE: The healing coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a...

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