Question

the total electromotive Force in any closed circuit is given by ​

Answer 1

The total electromotive Force in any closed circuit is given by ​$E= V+Ir$.

Explanation:

• Electromotive force is the election action produced by a non-electric source.
• It also define as the electric potential produced by either electrochemical cell or by changing the magnetic field.
• It also referred as e.m.f.
• In a closed circuit , E.M.F. of a cell is always more than the potential difference of the cell.
• Therefore, $V= E-Ir$ where, E=e.m.f. , V= potential difference across cell , I = current across the circuit and r=internal resistance of cell.

Hence,

The total electromotive Force in any closed circuit is given by ​$E= V+Ir$.