4.2.1 Electric charge
Take notes that, objects can be charged either positively or negatively by just the transfer of
negative charges or electrons.
Electric fields
An electric field as a region in which an electric charge experiences a
force. It is produced by a charged object.
The direction of an electric field at a point is the direction of the
force on a positive charge at that point.
Electric current
Definition of Electric Current
Charge passing a point per unit time, or rate of flow of charge. Mathematically,
where, Q is charge and is measured in Coulomb, C.