Drei Tricks bei der Berechnung von Widerständen einer Parallelschaltung (Wechselstrom 09)

0:00 Overview 01:11 Trick 1, fixed sign assignment 04:38 Trick 2, expanding with j, if complex number in denominator 05:20 Starting the task (calculating the solution) 07:11 Trick 3, assigning normal and exponential form This video is about calculating the impedance or impedance of a parallel circuit consisting of active and reactance resistors. The starting point is the common voltage of all resistors. Pointer diagrams or vector diagrams are helpful here. Conductance values are called ‘admittances’ here. Which reactance has which sign? It is clarified here. The three tricks that will help you with such calculations are probably the most important. For example, how to calculate with conjugate complex numbers by expansion if you cannot or are not allowed to use the complex mode of the calculator. Trick 3, for example, is that point calculations should be carried out using the exponential form and line calculations using the normal form.