The resistivity of aluminum is 2.82 X 10*-8Ω. m.HINT(a) Find the resistance of an aluminum wire (in ohms) with a radius of 1.28 mm and a length of 1.03 m.(b) Calculate the volume (in m) of aluminum in the wire.m3(c) Suppose that volume of aluminum is formed into a new wire with a length of 2.32 m. Find the new resistance of the wire (in ohms).

Given data: Resistivity, ρ=2.82×10-8Ω.m Radius of wire, r=1.28 mm=1.28×10-3m Length of wire, l=1.03…

The resistivity of aluminum is 2.82 × 10 -8 n. m. HINT (a) Find the resistance of an aluminum wire (in ohms) with a radius of 1.28 mm and a length of 1.03 m. Ω (b) Calculate the volume (in m³) of aluminum in the wire. 3 m' (c) Suppose that volume of aluminum is formed into a new wire with a length of 2.32 m. Find the new resistance of the wire (in ohms). Ω

The resistivity of aluminum is 2.82 × 10 -8 n. m. HINT (a) Find the resistance of an aluminum wire (in ohms) with a radius of 1.28 mm and a length of 1.03 m. Ω (b) Calculate the volume (in m³) of aluminum in the wire. 3 m' (c) Suppose that volume of aluminum is formed into a new wire with a length of 2.32 m. Find the new resistance of the wire (in ohms). Ω

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 70AP: A 10.00-meter long wire cable that is made of copper has a resistance of 0.051 ohms, (a) What is the...

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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

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The resistivity of aluminum is 2.82 X 10*
-8
Ω. m.
HINT
(a) Find the resistance of an aluminum wire (in ohms) with a radius of 1.28 mm and a length of 1.03 m.
(b) Calculate the volume (in m) of aluminum in the wire.
m3
(c) Suppose that volume of aluminum is formed into a new wire with a length of 2.32 m. Find the new resistance of the wire (in ohms).

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