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physics / electricity question (watt-hours) 

Ok, so is, e.g. 60 Wh:

1. 60 joules, dissapated over the course of 1 hour?

or

2. 60 * 3600 = 216,000 joules, dissapated over the course of 1 hour?

physics / electricity question (watt-hours) 

@tty It’s 216kJ, dissipated over any amount of time. The watt-hour is just a contrived way of turning power (energy per time) back into energy

physics / electricity question (watt-hours) 

@tty that is — a watt-hour is just multiplying volt-amps per second by 3600 seconds, so the seconds cancel out and you’re just left with a scaling factor.

physics / electricity question (watt-hours) 

@vy @tty it's vaguely useful in that you can say things like "I have three hundred watt bulbs, so running them for an hour uses three hundred watt hours, but yeah. The key take away is that Wh is a measure of energy, same as J. Time doesn't factor into it, because they cancel out.

physics / electricity question (watt-hours) 

@swift @vy thank you vy, swift

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