Because they're the same thing.
Because an electromotive force is a potential difference (voltage) -specifically, an electromotive force is the open-circuit or no-load potential difference of a source such as a battery or generator.
They are Same for dc motor
electromotive force...
The electrical unit named after Alessandro Volta is the "volt." The volt is a measure of electric potential difference or electromotive force in a circuit. It quantifies the amount of energy per unit charge provided by an electric source.
The force that pushes electricity through a wire or anything else is called electromotive force. This is the same as potential difference and is measured in volts. A volt is the potential difference that causes a power dissipation of 1 watt when the current is 1 amp.
BTUAnswerBTU AnswerBritish thermal unit; BTU
Voltage and potential difference are essentially the same thing in an electrical circuit. Voltage is the measure of potential difference between two points in a circuit. In other words, voltage is the force that pushes electric charges through a circuit, and potential difference is the measure of this force.
An electromotive force (e.m.f.) is the open-circuit, or no-load, potential difference provided by a source -such as a battery or generator. For a closed circuit, an e.m.f. is the sum of the voltage-drops around any closed loop, including the internal voltage drop of the source.A potential difference (voltage) can exist across any circuit component. For example, the fact that current is flowing through each of several resistors in a series circuit means that there must be an individual potential difference across each of those resistors (which we also term 'voltage drop').An electromotive force is the name we give to the open-circuit potential difference provided by a generator, battery, etc. For example, the open circuit potential difference of a battery would be its electromotive force.So, if we use a series resistive circuit as an example, the battery would provide the electromotive force, while voltage drops would then appear across its internal resistance, and across each of the resistances. The magnitude of the electromotive force is then equal (but acting in the opposite sense) to the sum of the voltage drops, including the internal voltage drop.Many textbooks use the symbol, E, to represent an electromotive force, and V to represent potential difference. So, Kirchhoff's Voltage Law, for example, will often be seen written as: E = V1 + V2 + V3 + etc.
Voltage is simply another word for potential difference.
false
children under 18
they are both the same thing but it is probably better to say potential difference as it is easier to understand. (since it is the DIFFERENCE across two points)