3 ms·
His point is that a Watt is a unit of power being equal to 1 joule per second. As an aside, this corresponds to an electric circuit with a potential difference
by wcarron 8y ago
His point is that a Watt is a unit of power being equal to 1 joule per second. As an aside, this corresponds to an electric circuit with a potential difference of 1 volt and a current of 1 Ampere.
Saying a human produces 100W/hr is wrong. What I assume he meant is this:
A human can produce 100W for 1 hour, on average. This is reasonable, since humans produce about 1/8 Horsepower, on average; and 1 HP = 746W.
- thaumasiotes 8y agoHe meant a human can produce 100W. He specifically doesn't mean "for one hour"; he says the human works a full workday, producing 800 watt-hours of energy.
- wcarron 8y agoRight, but 100W/hr is very different from 800wHr.
- jessaustin 8y agoMostly because "100W/hr" doesn't really mean anything sensible? If you wanted to write "100W" like "100W·hr/hr", that would be fine.