Joule (Noun)
Meaning 1
English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889).
Classification
Nouns denoting people.
Synonyms
Meaning 2
A unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second.
Classification
Nouns denoting quantities and units of measure.
Examples
- One joule is the amount of energy expended in one second by a current of one ampere through a resistance of one ohm.
- The amount of energy that a standard AA battery contains is about 3,600 joules.
- A common unit of energy in electrical applications, the joule is named after English physicist James Prescott Joule.
- In the metric system, one kilowatt-hour is equal to one million joules.
- A 100-watt light bulb uses one joule of electrical energy per 0.014 seconds of operation.