Definition

1. Noun:
   • The difference in electrical charge between two points in a circuit, expressed in volts: This is the potential energy per unit charge that drives electric current.
   • The electromotive force or potential difference expressed in volts: It is the "pressure" that pushes electrical current through a conductor.

Examples of Usage

• Noun:
  • The standard voltage for household outlets in many countries is 230 volts.
  • A multimeter is used to measure the voltage across the battery terminals.
  • High voltage power lines are dangerous and must be handled with extreme care.

Advanced Usage

• "To apply a voltage": To connect a source of electrical potential difference to a circuit or component.
  • You must apply the correct voltage to the motor for it to operate safely.
• "Voltage drop": The reduction in voltage between two points in a circuit, often due to resistance.
  • The long cable caused a significant voltage drop, making the light dim.

Variants and Related Words

• Volt (n): The SI unit of electrical potential difference and electromotive force.
  • One volt is defined as one joule of energy per coulomb of charge.
• Potential Difference (n): A more general term for the work needed to move a charge between two points, synonymous with voltage in many contexts.
• Electromotive Force (EMF) (n): The voltage generated by a source like a battery or generator.

Synonyms

• Electrical potential
• Potential difference
• EMF (Electromotive Force)

Related Phrases

• High voltage: A term for electrical potential that is strong enough to pose a severe hazard.
  • Warning: High voltage. Keep out.
• Low voltage: A term for electrical potential that is relatively safe and used for controls or small devices.
  • The garden lights run on a low voltage system.
• Voltage regulator: A device that maintains a constant voltage level.
  • The computer's power supply contains a voltage regulator.

Noun

1. the difference in electrical charge between two points in a circuit expressed in volts
2. the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts