D) What is the electric-field magnitude E, in units of V/m, in the rod at zL/2?Answer: (1) THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN HERE.A rod of semiconducting material of length Lthe x-axis between a =7 m and cross-sectional area A = 2.5 mm2 lies alongL. The material obeys Ohm's law, and its resistivity varies along the%3D0 and z =(1)rod according top= Powhere po = 2.5 x 10N. m. The end of the rod at a = 0 is at aL2%3Dpotential Vo = 40 V greater than the end at z = L.A) What is the total resistance, in units of 2, of the rod?Answer:B) What is the current, in units of miliamperes, in the rod?Answer:C) What is the electric potential, in units of Volt, in the rod at z = L/2?Answer:

Given: Length, L=7 m Area, A=2.5 mm2 Resistivity,ρ=ρo1-x2L2 ρo=2.5×10-4 Ω.m Potential at x=0, Vo=40…

A rod of semiconducting material of length L the x-axis between a = 7 m and cross-sectional area A = 2.5 mm lies along L. The material obeys Ohm's law, and its resistivity varies along the %3D O and z = (1) rod according top = po where po = 2.5 x 10 2. m. The end of the rod at a = 0 is at a L2 potential Vo = 40 V greater than the end at a = L. %3D A) What is the total resistance, in units of 2, of the rod? Answer: B) What is the current, in units of miliamperes, in the rod? Answer: C) What is the electric potential, in units of Volt, in the rod at z= L/2? Answer:

A rod of semiconducting material of length L the x-axis between a = 7 m and cross-sectional area A = 2.5 mm lies along L. The material obeys Ohm's law, and its resistivity varies along the %3D O and z = (1) rod according top = po where po = 2.5 x 10 2. m. The end of the rod at a = 0 is at a L2 potential Vo = 40 V greater than the end at a = L. %3D A) What is the total resistance, in units of 2, of the rod? Answer: B) What is the current, in units of miliamperes, in the rod? Answer: C) What is the electric potential, in units of Volt, in the rod at z= L/2? Answer:

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section28.3: Current Density

Problem 28.3CE

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