P eff

From solab
Revision as of 15:52, 22 October 2011 by imported>WikiSysop
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

<math>P_Template:Eff=\sum_{i=0}^n U_i * I_i *\cos \varphi_i</math>


<math>I\,\cos \varphi_i</math>

<math> \varphi_i = winkel\ zwischen\ U_i\ und\ I_i</math>

<math>I\,\cos \varphi</math> des Stroms<math>I\,</math>