How Do E-Field Lines Behave Between Finite Coaxial Cylindrical Conductors?

[cscott]

Homework Statement

What would the equipotential or e-field lines look like when staring down the axis of the two finite cylinders? Will the E-field lines be radial or are they different because the cylinders aren't infinite?

 

[cscott]

Also, how can I verify that the electric fields equal the inverse of the radial distances

E1/E2 = R2/R1

when I have a plot of equipotential lines for the cylinders.