The heating coil in an electric tea pot is made of nichrome wire with a radius of 0.225 mm. If the coil draws a current of 9.90 A when there is a 120 V potential difference across its ends, find the following. (Take the resistivity of nichrome to be 1.50 x 10-60. m.) (a) resistance of the coil (in Q) (b) length of wire used to wind the coil (in m)

The heating coil in an electric tea pot is made of nichrome wire with a radius of 0.225 mm. If the coil draws a current of 9.90 A when there is a 120 V potential difference across its ends, find the following. (Take the resistivity of nichrome to be 1.50 x 10-60. m.) (a) resistance of the coil (in Q) (b) length of wire used to wind the coil (in m)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 17CQ: Resistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a...

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