Electricity Flashcards
1
Q
Potential difference
A
The work done per unit positive charge
2
Q
An electric cell
A
A system in which certain chemical reactions can cause the flow of electricity through an external circuit
3
Q
Ohm’s law
A
The current through a conductor is directly proportional to the difference across the conductor at constant temperature
4
Q
Resistance
A
A materials opposition to the flow of electric current
5
Q
Electric current
A
The rate of flow of electric charge
6
Q
Emf
A
The total energy supplied per coulomb of charge by the battery
7
Q
Power
A
The rate at which electrical energy is converted to other forms of energy in an electric circuit
