Was ist die Formel für 2/3/4 parallele Widerstände?

$$R_{total} = \frac{1}{\frac{1}{R_1} + \frac{1}{R_2}}$$

Python-Code:

parallel_resistor_formula.py

rtotal = 1. / (1./r1 + 1./r2)

rtotal = 1. / (1./r1 + 1./r2)

$$R_{total} = \frac{1}{\frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}}$$

Python-Code:

parallel_resistors_3.py

rtotal = 1. / (1./r1 + 1./r2 + 1./r3)

rtotal = 1. / (1./r1 + 1./r2 + 1./r3)

$$R_{total} = \frac{1}{\frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \frac{1}{R_4}}$$

Python-Code:

parallel_resistors_4.py

rtotal = 1. / (1./r1 + 1./r2 + 1./r3 + 1./r4)

rtotal = 1. / (1./r1 + 1./r2 + 1./r3 + 1./r4)

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