It is suggested that a baloonmade of light conducting material could be kept approximately spherical by connecting it to a high voltage supply. The baloon has a diameter of 100 mm, and the maximum breakdown field in air is 3 megavolts/meter. What is the maximum permissible voltage?
Voltage implies potential.
The potential outside of a sphere is [tex]
The Attempt at a Solution
I think I should calculate the potential at the edge of the sphere, then compare that to some value based on the breakdown field?
Can someone explain what a breakdown field is and how it could be used in this situation? Wiki was fairly limited on this discussion.