The spherical surfaces r= 3, 4, and 5 m contain uniform surface chargedensities of 8, – 12, and ps, nC/m?, respectively (a) What value must psxbe so that D =0 for r> 5' k) If psz = 2 nC/m², calculate and plot D, vs rfor 0 5, D, =- 70/r2 (all in nC/m2)

(a) The given spherical surfaces are, S1(r=3, ρ=8)S2(r=4, ρ=-12)S3(r=5, ρ=ρSx) The total charge…

Answered: The spherical surfaces r= 3, 4, and 5 m…

The spherical surfaces r= 3, 4, and 5 m contain uniform surface charge densıties of 8, - 12, and psx nC/m?, respectively (a) What value must psx be so that D =0 for r> 5' ) If esx = for 0

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.

Question

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The spherical surfaces r= 3, 4, and 5 m contain uniform surface charge
densities of 8, – 12, and ps, nC/m?, respectively (a) What value must psx
be so that D =0 for r> 5' k) If psz = 2 nC/m², calculate and plot D, vs r
for 0 <r< 6 m
Answer:
(a) 4 8 nC/m?, (b) r < 3, D, = 0, 3 <r< 4, D, = 72/r², 4 <r< 5,
D, = - 120/r2, r > 5, D, =
- 70/r2 (all in nC/m2)

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