1. The problem statement, all variables and given/known data The diagram below depicts a cross section of coaxial conductor with an inner wire of diameter and an outer conducting sheath of inside diameter , and some material placed in the space between the two wires. Suppose that you have a coaxial wire with di= 2.85 mm, do= 6.25 mm and mylar ( k= 3.10) is placed in the space between the two wires. If there is a potential of 1 kV between the wires, how much energy is stored in a 10 m piece of cable? 2. Relevant equations [tex] U=\int V dQ[/tex] 3. The attempt at a solution I perform the intergral and come up with a couple equations this one seem the best: [tex] U= .5QV[/tex] Right?