any measurement of W or A is an assumption over time and can be only taken as an equivalent or verified after 1 hour if it is to be Ah or Wh, we could equally use minutes or seconds but for general transmission, storage and generation we use the hour as the unit of timeI think the word equivalent is important and it need not be verified, for example if 300W is measured for 30 minutes it is correct to quantify it as 600Wh because that is the equivalent hourly energy production. I have some Kwh displays that update every minute (for example how much energy have I consumed today), its just a ratiometric progression.
BTW I see we have added miles into the mix now
both speed and watts are time related, you have to set a standard unit. 1W = 1J/s but we never inten a watt as the energy (Joules) used in a second but in one hour and probably hence the more accurate but not always used Wh, we would equally say 3600 J/h
both speed and watts are time related, you have to set a standard unit. 1W = 1J/s but we never inten a watt as the energy (Joules) used in a second but in one hour and probably hence the more accurate but not always used Wh, we would equally say 3600 J/h
Because Wh is not the same as W/h, 1Wh is not 3600 J/h, it is 3600 J, or, if you prefer, 1Wh = 1W * 1h = 1J/s * 3600s = 3600J.
But you're trolling me, right?
what is the difference between Wh and W/h then ?
but I was previously corrected and told that 1W = 1J/s which is intended as joules per second not changing by a rate of 1J every second.
but no one has talked about changing power levels simply constant power use to use x amount per second is usually referred to as W/s same as m/s is speed not changing speed.
both speed and watts are time related, you have to set a standard unit. 1W = 1J/s but we never intend a watt as the energy (Joules) used in a second but in one hour and probably hence the more accurate but not always used Wh, we would equally say 3600 J/h
1W = 1J/s, there are 3600s in 1h, so if you are using 1W for 1h you need to use 3600W as in 3600 J/s,
but we usually refer to watts as over an hour period so what might technically be referred to as 1W is actually 1Wh
if 1W = 1J/s then 1Wh = 3600W = 3600 J/s.
1W = 1J/s, there are 3600s in 1h, so if you are using 1W for 1h you need to use 3600W as in 3600 J/s,
NO! One watt is one watt whether you're using it for an hour or a century. Power is not a time-dependent quantity.
One watt for one hour (1Wh) is 3600 joules. Not 3600 J/s.but we usually refer to watts as over an hour period so what might technically be referred to as 1W is actually 1Wh
if 1W = 1J/s then 1Wh = 3600W = 3600 J/s.
NO NO NO! We do NOT refer to watts as over an hour period. A 60W lightbulb uses 60 watts even if I switch it on for half a second.
1W is NOT 1Wh. They are completely different units. Watt = power. Wh = energy.
1Wh does NOT equal 3600W. 1Wh = 3600J.
1W = 1J/s, there are 3600s in 1h, so if you are using 1W for 1h you need to use 3600W as in 3600 J/s,
NO! One watt is one watt whether you're using it for an hour or a century. Power is not a time-dependent quantity.
One watt for one hour (1Wh) is 3600 joules. Not 3600 J/s.but we usually refer to watts as over an hour period so what might technically be referred to as 1W is actually 1Wh
if 1W = 1J/s then 1Wh = 3600W = 3600 J/s.
NO NO NO! We do NOT refer to watts as over an hour period. A 60W lightbulb uses 60 watts even if I switch it on for half a second.
1W is NOT 1Wh. They are completely different units. Watt = power. Wh = energy.
1Wh does NOT equal 3600W. 1Wh = 3600J.
Good grief, I thought this was supposed to be a technical forum
Next time I get pulled over, I will claim to be driving at "22 meters"
... but if 1W = 1J used in one second then the definition of a watt is tied to seconds. ...
I suggest looking at a Physics book.
I suggest looking at a Physics book.
Not sure what you mean, did I get something wrong?
Yes
Care to elaborate?
Look at what I wrote above.
Yes I know that 1Wh is not 3600W I was just trying to emphasis the confusion that can arise.
if 1W = 1J/s then 1Wh = 3600W = 3600 J/s.
If you were to say that this thing uses 1W anyone would assume you are saying it is a 1Wh device...
...and yes in an instant, or second it will have 1W going into it.
if 1W = 1J/s then 1Wh = 3600W = 3600 J/s.