They can be bent from their straight path by a magnetic or electrostatic field.
However, they contribute to the electrostatic field and are not restrained by the horizon.
Hence the charge within a black hole can exert an electrostatic field outside it.
Don may succeed in tinkering up some sort of electrostatic field.
By convention, F is taken as positive, even though the classical electrostatic field would be negative.
They were no longer held to the hull by the electrostatic field.
The electrostatic fields in metals are weak because of the screening effect.
Also the use of the electrostatic field means that the process can coat complex 3D parts easily.
The first term in the formula is just the electrostatic field with retarded time.
The electrostatic field inside a piece of metal is always zero.