Current electricity
par sarita kuan
1. Potential difference
1.1. The energy possessed by 1 unit of charge at any one point in a circuit.
1.1.1. V=W/Q
2. E.M.F (electromotive force)
2.1. The work done used to drive one unit of charge round a complete circuit.
3. Voltage
4. Current
4.1. The time taken to drive one unit of charge round a complete circuit
4.1.1. I=Q/T
5. Resistance
5.1. Ohm's law
5.1.1. R=V/I (constant)