6. A 0.500-meter length of wire with a cross-sectional area of 3.14 x 10-6 meterssquared is found to have a resistance of 2.53 x 10-3 ohms. According to theresistivity chart, from what material is the wire made?7. A flashlight lamp connected to a battery that provides 1.4 V draws a current of 0.10A.What electric power is used by the lamp?8. The label on a toaster reads 800 W at 120 V. How much current does it draw?9. When a light bulb is connected to a 3 V battery, a current of 0.2 A passes through thebulb filament. What is the resistance of the filament?10. Calculate the effective resistance of a pocket calculator that has a 1.35-V battery andthrough which 0.200 mA flows.

According to company guidelines we are allowed to solve only one problem, please do post other parts…

6. A0.500-meter length of wire with a cross-sectional area of 3.14 x 10 -6 meters squared is found to have a resistance of 2.53 x 10-3 ohms. According to the resistivity chart, from what material is the wire made?

6. A0.500-meter length of wire with a cross-sectional area of 3.14 x 10 -6 meters squared is found to have a resistance of 2.53 x 10-3 ohms. According to the resistivity chart, from what material is the wire made?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 6CQ: Electric circuits are sometimes explained using a conceptual model of water flowing through a pipe....

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

6. A 0.500-meter length of wire with a cross-sectional area of 3.14 x 10-6 meters
squared is found to have a resistance of 2.53 x 10-3 ohms. According to the
resistivity chart, from what material is the wire made?
7. A flashlight lamp connected to a battery that provides 1.4 V draws a current of 0.10A.
What electric power is used by the lamp?
8. The label on a toaster reads 800 W at 120 V. How much current does it draw?
9. When a light bulb is connected to a 3 V battery, a current of 0.2 A passes through the
bulb filament. What is the resistance of the filament?
10. Calculate the effective resistance of a pocket calculator that has a 1.35-V battery and
through which 0.200 mA flows.

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