A copper wire has a cross sectional area A1 = 10-6 m² and has a density of charge carriers of 1029 electrons/m3. Asshown in the figure, the copper wire is attached to an equal length of aluminum wire with a cross sectional area A2 = 8x 10-8 m2 , and density of charge carriers of 5 x 1028 electrons/m³. A current of 10 A flows through the copper wire.Approximate resistivities of copper and aluminum are pcu = 2 x 10-82.m and paj = 3 x 10-8 2.m respectively.Copper wireAluminum wireWhat is the current flowing through the Aluminum wire ?What is the ratio of the drift velocities in the two wires vcu / VA?What is the ratio of the resistances of the two wires Rcy/RA ?

The data for copper is: A1=10-6m2,n=1029electrons/m3,I=10A,ρcu=2×10-8Ω.m The data for aluminum is:…

A copper wire has a cross sectional area shown in the figure, the copper wire is attached to an equal length of aluminum wire with a cross sectional area A2 - 8 x 10-8 m2, and density of charge carriers of 5 x 1028 electrons/m. A current of 10 A flows through the copper wire. m² and has a density of charge carriers of electrons/m. As Approximate resistivities of copper and aluminum are pcu 2x 10-8 2.mand PAI = 3 x 10-82.m respectively. Copper wire Aluminum wire What is the current flowing through the Aluminum wire? What is the ratio of the drift velocities in the two wires vou/Va? What is the ratio of the resistances of the two wires Rou/RA?

A copper wire has a cross sectional area shown in the figure, the copper wire is attached to an equal length of aluminum wire with a cross sectional area A2 - 8 x 10-8 m2, and density of charge carriers of 5 x 1028 electrons/m. A current of 10 A flows through the copper wire. m² and has a density of charge carriers of electrons/m. As Approximate resistivities of copper and aluminum are pcu 2x 10-8 2.mand PAI = 3 x 10-82.m respectively. Copper wire Aluminum wire What is the current flowing through the Aluminum wire? What is the ratio of the drift velocities in the two wires vou/Va? What is the ratio of the resistances of the two wires Rou/RA?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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