1.2 V
1.3 V
1.4 V
1.5 V
continuous use
large current requirements
intermittent use
large voltage requirements
increase the internal resistance
increase the output e.m.f.
increase the current capacity
decrease the current capacity
decrease the output e.m.f.
decrease the internal resistance
it converts the produced hydrogen into water
it prevents the fast chemical action on the zinc electrode
it synthesizes the decomposed electrolyte
it absorbs the oxygen produced in the cell