Timeline for Understanding electrical consumption
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 9, 2022 at 4:49 | comment | added | alejnavab | “So a kWh is 1000 W × 3600 s = 3.6 MJ (megajoules), so that's not so practical […]” // I personally disagree on this. The joule (J) is just as practical as the watt-hour (W•h). No matter how big or small the amount of energy is, we can always use prefixes (giga, micro, etc) to state such amount between >0 and <1000, which are reasonable numbers. I mean, according to your reason, then the kW•h is also impractical because we’re talking about thousands of hundreds of watt-hours. | |
| Feb 9, 2022 at 4:42 | comment | added | alejnavab | “The kWh is a practical unit for electrical power” // False, that’s a unit of energy. | |
| Feb 9, 2022 at 4:40 | comment | added | alejnavab | “The others already told you that energy is power × time.” // That’s true if by “energy” you meant “net energy” and by “power” you meant “average power in the time interval”. That’s not true if by “power” you meant “instantaneous power” and by “energy” you meant “instantaneous energy”. | |
| Nov 1, 2013 at 13:47 | history | edited | Federico Russo | CC BY-SA 3.0 |
added 4 characters in body
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| Oct 22, 2012 at 18:30 | history | answered | stevenvh | CC BY-SA 3.0 |