electric fields Flashcards
1
Q
electric field strength
A
the electric field strength of an electric field at a point in space is defined as the force experienced per unit positive charge at that point
E = F/Q
2
Q
electric field line patterns
A
- arrow shows the direction of the field
- always at right angles to the surface
- equally spaced represent a uniform field
- closer lines represent greater efs
3
Q
what is coulombs law
A
any two point charges exert an electrostatic force on each other that is directly proportional to the product of their charges and inversly proportional to the square of the distance between them
4
Q
as a charge moves along a field what is the V
A
V is qual to the work done per unit charge and work done is the product of the force and distance