resistance of the coil

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The heating coil in a hair dryer is made of nichrome wire with a radius of 0.400 mm. If the coil draws a current of 9.65 A when there is a 120 V potential difference across its ends, find the following. (Take the resistivity of nichrome to be 1.50 × 10¯6 • m.)
(a) resistance of the coil (in)
Ω
(b) length of wire used to wind the coil (in m)
m
Transcribed Image Text:The heating coil in a hair dryer is made of nichrome wire with a radius of 0.400 mm. If the coil draws a current of 9.65 A when there is a 120 V potential difference across its ends, find the following. (Take the resistivity of nichrome to be 1.50 × 10¯6 • m.) (a) resistance of the coil (in) Ω (b) length of wire used to wind the coil (in m) m
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