Calculate the current through a 10.0 m long nichrome wire with a diameter of 0.642 mm if it is connected across a 12.0 V battery. The resistivity of the nichrome is 1.00 × 10^-6 Ω ∙ m. Hint: Ohm's Law after you calculate the resistance. Standard units!

Calculate the current through a 10.0 m long nichrome wire with a diameter of 0.642 mm if it is connected across a 12.0 V battery. The resistivity of the nichrome is 1.00 × 10^-6 Ω ∙ m. Hint: Ohm's Law after you calculate the resistance. Standard units!

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 67PQ

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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

Calculate the current through a 10.0 m long nichrome wire with a diameter of 0.642 mm if it is connected across a 12.0 V battery. The resistivity of the nichrome is 1.00 × 10^-6 Ω ∙ m.

Hint: Ohm's Law after you calculate the resistance. Standard units!

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