Flow of charge
Flow of charge = current x time
Current
Current = charge / time I = Q / t
Voltage
Voltage = energy / charge
1 volt
1 volt = 1 joule / 1 coloumb
Resistance
Resistance = voltage / current
Ohm’s law
resistance = potential difference / current
Energy transfer
Energy transferred = charge moved x potential difference
Power (3)
P = I x V P = I^2x R P = E / t