Electromotive Force (EMF) Calculator

Formula

The formula to calculate the Electromotive Force (EMF) is:

\[ E = \frac{W}{Q} \]

Where:

\( E \) is the Electromotive Force (Volts).
\( W \) is the Work Done (Joules).
\( Q \) is the Charge (Coulombs).

What is Electromotive Force?

The electromotive force (EMF) is the potential difference between two points in an electrical circuit. It represents the energy per unit charge supplied by a source, such as a battery or generator. EMF is measured in volts (V), and it indicates the ability of the source to drive an electric current through a circuit. The higher the EMF, the more electrical energy is provided for each charge that flows through the circuit.

Example Calculation

Consider an example where:

Work Done (W): 50 Joules
Charge (Q): 10 Coulombs

Using the formula to calculate the Electromotive Force:

\[ E = \frac{50}{10} = 5 \text{ Volts} \]

This means that the electromotive force for this example is 5 Volts.