A charge of uniform linear density ? is distributed along a long, thin, noncondu

Question

A charge of uniform linear density ? is distributed along a long, thin, nonconducting rod. The rod is coaxial with a long conducting cylindrical shell (inner radius r, outer radius R). The net charge on the shell is zero. (a) What is the magnitude of the electric field a distance d from the axis of the shell (where d > R)? What is the surface charge density on the (b) the inner and (c) outer surface of the shell? State your answers in terms of the given variables, using ?0 when necessary. (a)Ed , (b)?i , (c)?o

Explanation / Answer

acoording to gauss law=E.ds=q/e

=E2pid*l=lamda*l/e

E=lamda/e*2pi*d

the surface charge density on the the inner and =-lamda/2pi*r

the surface charge density on the outersurface =lamda/2pi*R

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