kWh
kWh
(OP)
In the acronym kWh, Why is the W capitalized? Never really gave it much thought until someone asked about it.
Thanks
Blacklabs
Thanks
Blacklabs
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: kWh
TTFN
RE: kWh
RE: kWh
RE: kWh
We really should have named something more prominant after Nikola Tesla if you ask me (but nobody did). A unified unit of motor power (instead of HP or kW) would have been more appropriate than a magnetic flux measurement (T) of 1 Wb per square meter. A Weber (Wb), of course comes from Wilhelm Eduard Weber.
The only term we accept abbreviated with a lower case letter is a Joule, (J or j), named after James Prescot Joule. I have no idea why the lower case is considered acceptable, but it is.
I actually did an entire term paper on the etymology of electrical terminology and got an A on it. Now it rattles around in my head uselessly until I can answer that kind of question or need to win a bar bet.
Cheers!
"Venditori de oleum-vipera non vigere excordis populi"
RE: kWh
Keith Kropf
Key Largo, Florida
RE: kWh
The conversation with the mathematicians (including my wife) usually goes something like this:
"Why don't you use i for the square root of minus one, like everyone else does?"
"Because i is for current."
"Why don't you use C for current?"
"Because that is for capacitance."
There seems to be no argument with that one.
Regards,
William
RE: kWh
Regards,
William
RE: kWh
weh3 is correct, k as in kilo is always supposed to be lower case, although it is very common to see it misrepresented as upper case. Upper case K is the abbreviation for Degrees Kelvin (and Karat, the gold content in jewelry). Unfortunately, when the computer industry adopted the representation of 1024 bytes to be "1000 bytes", they mistakenly used an upper case K, so now we are stuck with Kb as a term for kilobytes, but technically that has always been incorrect. It should have been kb.
At some point when the vast majority does something wrong, we often change the definition of right!
RE: kWh
William
RE: kWh
As for joules, the symbol is an upper-case "J." see:
http://physics.nist.gov/cuu/Units/units.html
The spelled out unit is lower-case, except for the "degree Celsius."
TTFN
RE: kWh
we mostly use a upercase B when we mean bytes - 8 Kb is 1KB.
Needless to say, this is mixed up more than a few times.
C is for coulomb, a unit of charge, while capacitance is farhad (F)
RE: kWh
Every now and then my tendancy to be hasty bytes me in the rear a bit.
"Venditori de oleum-vipera non vigere excordis populi"
RE: kWh
Thermodynamic temperature unit is kelvin, without the degree and symbol K.
TTFN
RE: kWh
RE: kWh
As for quark's statement, what about meters and grams?
William
RE: kWh
See http://physics.nist.gov/cuu/Units/outside.html
RE: kWh
Thanks for the correction.
RE: kWh
In the above sentence, the last character is a 'one', whereas the others are lowercase L's.
RE: kWh
c0n73x7 i5 3v3ry7h1n9!
RE: kWh
----------------------------------
If we learn from our mistakes,
I'm getting a great education!