Question

E.M.F. of a simple voltaic cell is _______

Answer 1

1. The electromotive force of a cell or EMF of a cell is the maximum potential difference between two electrodes of a cell.
2. It can also be defined as the net voltage between the oxidation and reduction half-reactions.
3. The EMF of a cell is mainly used to determine whether an electrochemical cell is galvanic or not.

Hence, E.M.F. of a simple voltaic cell is $1V$