<^< Electrostatics | Course Index | Capacitance >^>
The force exerted on a free electric charge is a manifestation of the existence of an electric field. The electric field defines the direction and magnitude of the force experienced by a charged particle. The field itself is invisible to the human eye but can be drawn by constructing lines which indicate the motion of a free positive charge within the field. The number of field lines in a particular region are used to indicate the relative strength of the field at the point in question (more lines = stronger field).
<^< Electrostatics | Course index | Capacitance >^>
