Static GapFill

A build-up of charge is known as  no currentsparkinginsulationstatic electricity. Charge can only build up on  insulatingcoldconductingcharged materials because the charge cannot dissipate.
When two objects rub against each other,  protonsnucleielectronsatoms are transferred from one material to the other, causing the two objects to become oppositely charged, so they  charge upattractrepeldissipate energy. When charge builds up like this, there is a potential difference between the oppositely charged objects. If the potential difference increases enough, there is  thundera cracklea sparka shock as charges jump across the gap. This can be very dangerous as it can ignite flammable materials or gases, so, in factories or petrol stations, objects need to be  cooledlivegroundedzeroed to stop this from happening.
A charged object produces  an electric fielda magnetic fielda static auraa charge halo around itself, where other charged objects experience a force. This is stronger  in a stormat the poles of a magnetclose to the charged objectfar from the charged object.