Electrostatics Flashcards
Principal of conservation of charge
The net charge in an isolated system remains constant during any physical process
Coulomb’s law
The magnitude of the electrostatic force exerted by one point charge(Q1) on another point charge(Q2) is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance (r) between them
Static electricity
Imbalance/unbalance of charge on an object
Principal of quantisation of charge
States that every charge in the universe is an integer multiple of the charge on one electron
Electric field
A region of space in which an electric charge experiences a force. The direction of the electric field at a point is the direction that a positive test charge would move if placed at that point
Electric field at a point
The electric field at a point is the electrostatic force experienced per unit positive charge placed at that point