Definition

1. 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.

Usage Examples

• 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.

Advanced Usage

• "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.

Variants and Related Words

• 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.

Synonyms

• Potential difference: The difference in electric potential between two points.
• Voltage: Informal synonym for electric potential difference.

Related Phrases

• "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.

Related Idioms

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).

Noun

1. the difference in electrical charge between two points in a circuit expressed in volts