Voltaic Cell


  • Two different metal plates are dipped into an electrolyte and connected with connecting wires.
  • Also known as voltaic cell or galvanic cell. 
  • Converts chemical energy to electrical energy. 
  • A redox reaction occurs in the cell that causes the flow of electrons.
  • The potential difference detected by the voltmeter indicates the presence of an electrical current.



Terminal Half equation
Negative \(Zn (s) \rightarrow Zn^{2+} (aq) + 2e^-\)
Positive \(Cu^{2+} (aq) + 2e^-\rightarrow Cu(s) \)