P eff
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>