A ribbon of nichrome (resistivity = 1.00 A 10-6 Q-m) with a rectangular cross sectional area and length 21.9 cm is used as a heating element in a toaster. What is the cross-sectional area of the ribbon, if the total resistance is intended to be 1.5? Select one: O a. 0.33 mm2 O b. 0.25 mm2 O c. 1.24 mm2 O d. 0.79 mm2 O e. 1.02 mm2

A ribbon of nichrome (resistivity = 1.00 A 10-6 Q-m) with a rectangular cross sectional area and length 21.9 cm is used as a heating element in a toaster. What is the cross-sectional area of the ribbon, if the total resistance is intended to be 1.5? Select one: O a. 0.33 mm2 O b. 0.25 mm2 O c. 1.24 mm2 O d. 0.79 mm2 O e. 1.02 mm2

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 55P: A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any...

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