A solid sphere of radius R has a charge density, given by p(r)=p|-1= where r is the radial coor- R dinate and po,a and R are positive constants. If the magnitude of the electric field at r=R/2 is 1.25 times that at r = R, then the value ofa is (a) 2 (b) 1 ()

A solid sphere of radius R has a charge density, given by p(r)=p|-1= where r is the radial coor- R dinate and po,a and R are positive constants. If the magnitude of the electric field at r=R/2 is 1.25 times that at r = R, then the value ofa is (a) 2 (b) 1 ()

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

A solid sphere of radius R has a charge density, given by p(r)=p|-1=
where r is the radial coor-
R
dinate and po,a and R are positive constants. If the magnitude of the electric field at r=R/2 is 1.25
times that at r = R, then the value ofa is
(a) 2
(b) 1
()

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