Discussion

introduction

Static charge moves to the outside. This sounds stupid, "static charge moves".

Field is zero on the inside.

• Faraday cage, electrostatic shielding, etc.

Field perpendicular to surface.

Charge collects at points. This leads to a phenomena known as corona discharge. "Corona" from the latin word for crown.

Corona Discharge from a Wire

Corona discharge is a useful way to passively eliminate charge.

Lightning rods on an Airplane Wing.	Lightning rods on an Electric Power Substation

text