Someone has given you a light bulb and asked you to figure it out the materials of the filament of a light bulb made from. You placed the light bulb in the bulb holder and with the help of multimeter, you measured a current of 0.830 A passing through the bulb and voltage of 1.20 x 102 V across the bulb. When you solve the problem, please use the length of the filament as 6.00 x 10¹ cm and diameter of the wire as 9.50 x 10-3 mm. Hint: You simply find the resistivity of the material and then compare your value from the table provided here. After that tell me the name of the material of the filament. Is it tungsten or something else? Material Copper Aluminum Tungsten (20°C) Tungsten (1500°C) Iron Nichrome Resistivity (22.m) 1.7x10-8 2.7x10- 5.6x10-8 5.0x107 9.7x10-8 1.5×10-6

Someone has given you a light bulb and asked you to figure it out the materials of the filament of a light bulb made from. You placed the light bulb in the bulb holder and with the help of multimeter, you measured a current of 0.830 A passing through the bulb and voltage of 1.20 x 102 V across the bulb. When you solve the problem, please use the length of the filament as 6.00 x 10¹ cm and diameter of the wire as 9.50 x 10-3 mm. Hint: You simply find the resistivity of the material and then compare your value from the table provided here. After that tell me the name of the material of the filament. Is it tungsten or something else? Material Copper Aluminum Tungsten (20°C) Tungsten (1500°C) Iron Nichrome Resistivity (22.m) 1.7x10-8 2.7x10- 5.6x10-8 5.0x107 9.7x10-8 1.5×10-6

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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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

Someone has given you a light bulb and asked you to figure it out the materials of
the filament of a light bulb made from. You placed the light bulb in the bulb holder
and with the help of multimeter, you measured a current of 0.830 A passing through
the bulb and voltage of 1.20 x 102 V across the bulb. When you solve the problem,
please use the length of the filament as 6.00 x 10¹ cm and diameter of the wire as
9.50 x 10-3 mm.
Hint: You simply find the resistivity of the material and then compare your value
from the table provided here. After that tell me the name of the material of the
filament. Is it tungsten or something else?
Material
Copper
Aluminum
Tungsten (20°C)
Tungsten (1500°C)
Iron
Nichrome
Search
Resistivity (2.m)
1.7x10-8
2.7x10-
5.6x10-8
5.0×10-7
9.7x10-8
1.5×10-
H

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