Coulomb's Law
The magnitude of the electric force exerted by two point charges (Q1 and Q2) on each other is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
Conservation of charge
Charge cannot be created or destroyed, but only transferred from one object to another
Electric field
A region in space in which an electric charge experiences a force
Electric field strength at a point
The electrostatic force experienced per unit positive charge placed at this point
Faraday's Law
The magnitude of the induced e.m.f. is directly proportional to the rate of change of magnetic flux linkage with the conductor
Magnetic flux
Number of field lines through an area
Electromagnetic induction
Process of producing emf and current
Current
Number of charges flowing past a point in one second
Potential difference
Energy required/work done to move charges in a circuit
Ohms law
The potential difference across a conductor is directly proportional to the current in the conductor at constant temperature
Power
Rate at which work is done or energy is transferred
Lenz's Law
The current flows to oppose the effect producing it