- #1

cdummie

- 147

- 5

## Homework Statement

How to determine maximum voltage that coaxial cable, whose height is L and is filled with dielectric in such way that E is the same in the dielectric and in the part of the cable that isn't filled with dielectric (only vacuum),can handle if i have maximum electric field that is E=3MV/m, and i have inner radius a=2cm and outer b=2.72a. Dielectric is homogeneous and linear.

## Homework Equations

## The Attempt at a Solution

I tried like this U=∫E*dl but since i know exact value of Emax and no data for ε

_{r}and Qmax i can't solve this.