electric potential
- Noun:
- The difference in electrical charge between two points in a circuit expressed in volts: This is the primary scientific definition. It is the amount of work needed to move a unit of electric charge from a reference point to a specific point against an electric field. It is measured in volts.
- Noun:
- The electric potential across the battery terminals is 9 volts.
- To calculate the current, you must know the electric potential and the resistance.
- A voltmeter is used to measure the electric potential difference between two points.
"Potential difference": This is a common synonym for electric potential in many contexts, specifically referring to the difference in electric potential between two points.
- The potential difference drives the flow of electrons through the conductor.
"Electrostatic potential": In a static (non-moving) electric field, the electric potential is often referred to as electrostatic potential.
- The electrostatic potential at a point in space is defined relative to infinity.
Potential (n): In physics, this often refers to electric potential. In general language, it means latent qualities or abilities.
- The cell has an electric potential of 1.5 volts. (Physics context)
- She has the potential to be a great leader. (General context)
Voltage (n): A common informal term for electric potential difference.
- The voltage supplied by the outlet is 120 volts.
Electromotive force (EMF) (n): A related concept that refers to the electric potential produced by an energy source like a battery or generator.
- Potential difference: The difference in electric potential between two points.
- Voltage: Informal synonym for electric potential difference.
"Drop in potential" or "Potential drop": Refers to the reduction in electric potential across a component like a resistor.
- There is a significant potential drop across the large resistor.
"High potential" / "Low potential": Describes the relative value of electric potential at a point.
- The wire connected to the positive terminal is at a high potential.
Note: As a precise scientific term, "electric potential" is not commonly used in idiomatic expressions. The related word "potential" is used idiomatically in general language. - "Reach one's full potential": To achieve the highest level of one's ability. - With the right training, the athlete can reach her full potential. (This idiom uses the general meaning of "potential," not the electrical term).
- the difference in electrical charge between two points in a circuit expressed in volts