3- A long wire with a charge per unit length +A is placed along the axis of a cylindrical shell with an inner radius a and an outer radius b as shown in the figure. The cylindrical shell is conductive and its charge per unit length is + 2A. What is the magnitude of the electric field at r>b under electrostatic equilibrium? wire +24 Conductive shell a) E = kA /r b) E = 2kA / r2 C) E = 6kÀ /r d) E = 2k/r e) E = 3k/r

3- A long wire with a charge per unit length +A is placed along the axis of a cylindrical shell with an inner radius a and an outer radius b as shown in the figure. The cylindrical shell is conductive and its charge per unit length is + 2A. What is the magnitude of the electric field at r>b under electrostatic equilibrium? wire +24 Conductive shell a) E = kA /r b) E = 2kA / r2 C) E = 6kÀ /r d) E = 2k/r e) E = 3k/r

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 46PE: (a) Using the symmetry of the arrangement, determine the direction of the electric field at the...

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