Referencing the table above and the information below, determine the resistance of the following: a) nichrome wire for heating element of an electric toaster is 190 cm long, and has a diameter of 0.05 cm. b) Copper ground wire 10 cm long, with a diameter of 6.3 mm c) Tungsten filament wire 3 cm long, with a diameter of 0.3 mm. Resistivities at 20°CMaterialResistivity (2•m)Aluminum2.82 x 10-8Сopper1.72 x 10-8Gold2.44 x 10–8Nichrome150. x 10-8Silver1.59 x 10-8Tungsten5.60 x 10-8 Related to resistance is a term called resistivity. Resistivity depends on material type, and is a number withunits of Am. When multiplied by a wire's length divided by its area, resistivity yields the overall resistance ofthat length of wire:AR = resistivity(L/A)L

GIVEN (a ) Nichrome wire length 190 cm and diameter of 0.05 cm, specific resistivity = 150 x 10-8…

Answered: Referencing the table above and the…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.5CQ: How does the resistance for copper and for silicon change with temperature? Why are the behaviors of...

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Referencing the table above and the information below, determine the resistance of the following: a) nichrome wire for heating element of an electric toaster is 190 cm long, and has a diameter of 0.05 cm. b) Copper ground wire 10 cm long, with a diameter of 6.3 mm c) Tungsten filament wire 3 cm long, with a diameter of 0.3 mm.

Resistivities at 20°C
Material
Resistivity (2•m)
Aluminum
2.82 x 10-8
Сopper
1.72 x 10-8
Gold
2.44 x 10–8
Nichrome
150. x 10-8
Silver
1.59 x 10-8
Tungsten
5.60 x 10-8

Related to resistance is a term called resistivity. Resistivity depends on material type, and is a number with
units of Am. When multiplied by a wire's length divided by its area, resistivity yields the overall resistance of
that length of wire:
A
R = resistivity
(L/A)
L

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