Charge
One of the basic properties of the elementary particles of matter giving rise to all electric and magnetic forces and interactions
Electrostatic charge
Electric charge at rest on the surface of an insulated body
Electric Force Field
The region around a charged particle or object in which it exerts a force on other charged particles or objects
The direction of the electric field (at a point)
The direction that a positive test charge would move if placed at that point
Electrostatic Force
The force exerted by non-moving (static) charges on each other
Basic Law of Electrical Charges
Like charges repel each other while unlike charges attract each other
Law of Conservation of Charge
The net charge of an isolated system remains constant