Wire C and wire D are made from different materials and have length Lc = Lp = 1.5 m. The resistivity and diameter of wire Care 4.9 x 10-6 2-m and 1.10 mm, and those of wire D are 3.8 x 1060-m and 0.62 mm. The wires are joined as shown in the figure and a current of 3.1 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and (d) points 2 and 3?

Wire C and wire D are made from different materials and have length Lc = Lp = 1.5 m. The resistivity and diameter of wire Care 4.9 x 10-6 2-m and 1.10 mm, and those of wire D are 3.8 x 1060-m and 0.62 mm. The wires are joined as shown in the figure and a current of 3.1 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and (d) points 2 and 3?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.9OQ: The current-versus-voltage behavior of a certain electrical device is shown in Figure OQ27.9. When...

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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

Can you please help me with this question? I appreciate your help!

Wire C and wire D are made from different materials and have length Lc = Lp = 1.5 m. The resistivity and diameter of wire Care 4.9 x
10-6 2-m and 1.10 mm, and those of wire D are 3.8 x 10-6 2-m and 0.62 mm. The wires are joined as shown in the figure and a current
of 3.1 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at
which energy is dissipated between (c) points 1 and 2 and (d) points 2 and 3?
(a) Number
(b) Number
(c) Number
(d) Number
Units
Units
Units
Units
C
Lc
D
LI

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Step 2: Calculation for resistance of wire C.

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Step 3: Calculation for resistance of wire D.

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Step 4: Calculation for potential difference between points 1 and 2.

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Step 5: Calculation for potential difference between points 2 and 3.

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Step 6: Calculation for rate at which energy is dissipated between points 1 and 2.

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Step 7: Calculation for rate at which energy is dissipated between points 2 and 3.

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