PF = Kw/ sqrt (Kw^2 + Kvar^2) Kva = sqrt (Kw^2 + Kvar^2) Pf = cos angle between voltage and current In order to calculate PF you must know...
1 Answers · Science & Mathematics · 19/07/2012
PF is prefocus, it is what you do with a digital camera to achieve a clear picture of your subject. You press the shutter halfway then when your subject is in focus already you press the button all the way to take the picture.
3 Answers · Arts & Humanities · 02/03/2011
PF: I think this should definitely go to Dirk Nowitzki! His...a lot of big guys to try & stop him. Especially since most PF's that guard Dirk are really flat footed.
19 Answers · Sports · 06/01/2009
LG W2043T-PF 20-Inch Diagonal Class Widescreen LCD...
2 Answers · Computers & Internet · 26/05/2010