1
Q
Potential difference
A
Work done per unit positive charge
2
Q
Current
A
The rate of flow of charge
3
Q
Ohm’s law
A
Current through a conductor is directly proportional to the potential difference across the conductor at constant temperatures
4
Q
Resistance
A
A materials opposition to the flow of electric current
5
Q
Electromotive force (EMF)
A
The total energy supplied per coulomb of charge by the cell
