What is EMF?
EMF:
The full form of EMF is electromotive force. It must be defined as the electrical potential generated either by an electrochemical cell or perhaps a magnetic field fluctuation.
Mathematical representation:
Mathematically, emf can be represented as:
Here,
ε is the Electromotive force.
V is the voltage of the cell.
I is the current across the circuit.
r is the internal resistance of the cell.