<Dl> <Dd> Zn + Cu → Zn + Cu </Dd> </Dl> <Dd> Zn + Cu → Zn + Cu </Dd> <P> In addition, electrons flow through the external conductor, which is the primary application of the galvanic cell . </P> <P> As discussed under Cell Voltage, the emf of the cell is the difference of the half - cell potentials, a measure of the relative ease of dissolution of the two electrodes into the electrolyte . The emf depends on both the electrodes and on the electrolyte, an indication that the emf is chemical in nature . </P>

Where do electrons flow in a galvanic cell