Convert watt-hour to attojoule
Please provide values below to convert watt-hour [W*h] to attojoule [aJ], or Convert attojoule to watt-hour.
How to Convert Watt-Hour to Attojoule
1 W*h = 3.6e+21 aJ
Example: convert 15 W*h to aJ:
15 W*h = 15 × 3.6e+21 aJ = 5.4e+22 aJ
Watt-Hour to Attojoule Conversion Table
| watt-hour | attojoule |
|---|
Watt-Hour
A watt-hour (W·h) is a unit of energy equal to the amount of energy transferred or used when one watt of power is sustained for one hour.
History/Origin
The watt-hour was established as a practical unit of energy measurement with the adoption of the International System of Units (SI) and has been used in electrical and energy industries to quantify energy consumption and storage since the 20th century.
Current Use
Watt-hours are commonly used to measure electrical energy consumption in household appliances, batteries, and energy storage systems, providing a convenient unit for billing, capacity ratings, and energy management.
Attojoule
An attojoule (aJ) is a unit of energy equal to 10^-18 joules.
History/Origin
The attojoule was introduced as part of the SI prefixes to measure extremely small amounts of energy, particularly in fields like nanotechnology and quantum physics, as the need to quantify very tiny energy scales grew.
Current Use
The attojoule is used in scientific research to measure minute energy quantities, such as in nanotechnology, quantum computing, and molecular biology, where energies involved are extremely small.