Question 7 only a wire with a resistance of 5 2. What is the power rating of the heater?(Ans. 2.4 kW)7. What is the resistance of a 4.5-m length of copper wire 1.5 mm in diameter?(Ans. 4.3x10-2 Q)8.A rectangular solid made of carbon has sides of lengths1.0 cm, 2.0 cm, and 4.0 cm, lying along the x, y, and zaxes, respectively. Determine the resistance for currentthrough the solid in (a) the x direction, (b) the y4.0 cm2.0 cadirection, and (c) the z direction. Assume the resistivityis p = 3.0 X 10-5 Q.m.(Ans. a) 3.8x10-4 2, b) 1.5x10-3 2, c) 6x10-3 2)10 cm

Given: Length of the wire (L)=4.5 m The diameter of the wire (d) = 1.5 mm The radius of the wire (r)…

Answered: What is the resistance of a 4.5-m…

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What is the resistance of a 4.5-m length of copper wire 1.5 mm in diameter? (Ans. 4.3x10-2 Q) I

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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Question

Question 7 only

a wire with a resistance of 5 2. What is the power rating of the heater?
(Ans. 2.4 kW)
7. What is the resistance of a 4.5-m length of copper wire 1.5 mm in diameter?
(Ans. 4.3x10-2 Q)
8.
A rectangular solid made of carbon has sides of lengths
1.0 cm, 2.0 cm, and 4.0 cm, lying along the x, y, and z
axes, respectively. Determine the resistance for current
through the solid in (a) the x direction, (b) the y
4.0 cm
2.0 ca
direction, and (c) the z direction. Assume the resistivity
is p = 3.0 X 10-5 Q.m.
(Ans. a) 3.8x10-4 2, b) 1.5x10-3 2, c) 6x10-3 2)
10 cm

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