Potential Difference (P.D)

Cards (4)

  • A cell produces its maximum PD when not in a circuit and not supplying current.
  • Voltage is the amount of energy the cell gives the electrons it pushes out. Voltage is measured in volts (V) and is measured by a voltmeter (connected in parallel).
  • If a cell has 1 Volt, it delivers 1 Joule of energy to each coulomb of charge (J/C).
  • The formula for voltage is: Voltage =Voltage\ = EnergyCharge\ \frac{Energy}{Ch\arg e} or V =V\ = EC\ \frac{E}{C}