1. The problem statement, all variables and given/known data A conducting wire of length a and charge density lambda is embedded inside a dielectric cylinder of radius b. To Show: a) Bound charge on the outer surface is equal in magnitude to the bound charge inside the surface. b) volume density of bound charge is 0 in the dielectric. c) what is the net charge along the axis? 2. Relevant equations 3. The attempt at a solution I calculated D and E outside the dielectric which came out to be D = lambda/(2*pi*s) along axial (s) direction E = lambda/(2*epsilon_0*pi*s) along axial (s) direction Using Gauss's Law I found out free charge enclosed and total charge enclosed using D and E. Then subtracting free charge from the total charge, I got the total bound charge enclosed, which came out to be 0. I don't know if it make sense or not. I need help in understanding the question. Thanks.