Chapter 25, Problem 33PQ

Figure P25.33 shows a very long, thick rod with radius R, uniformly charged throughout. Find an expression for the electric Field inside the rod (r < R). Use Equation 25.13,

$\stackrel{\to }{E}=\frac{1}{2\pi {\epsilon }_0}=\frac{1}{r}\hat{r}$

to check your solution at the surface, where r = R.

Figure P25.33