Question

explain the term electromotive force of cell obtain formula for maximum current that can be drawn from emf device or cell?​

Answer 1

Answer:

The electromotive force (emf) is the sum of the electric potential differences produced by a separation of charges (electrons or ions) that can occur at each phase boundary (or interface) in the cell. The magnitude of each potential difference depends on the chemical nature of the two contacting phases.

Explanation:

Answer 2

Answer:

The voltage difference across the terminals of a cell when no current is drawn from it .The electromotive force is the sum of electric potential difference produce by a seperation of charges that can occur at each phase boundary in the cell.

The cells are connected through

R=nE/nr+R

So it depends on relative values of internal and external resistance.