Question

Calculați rezistența echivalentă a circuitului de mai jos.
Mulțumesc anticipat!

Answer 1

Calculam rezistentele echivalente la:

(1) :

$\frac{1}{R1}=\frac{1}{2}+\frac{1}{2}=\frac{2}{2}\\ \\ \Rightarrow R1=1$

(2):

$\frac{1}{R2}=\frac{1}{2}+\frac{1}{2}=\frac{2}{2}\\ \\ \Rightarrow R2=1$

(3):

$\frac{1}{R3}=\frac{1}{2}+\frac{1}{2}+\frac{1}{2}=\frac{3}{2}\\ \\ \Rightarrow R3=\frac{2}{3}$

(4):

$R4=2+1=3$

(5):

$R5=\frac{2}{3}+1=\frac{5}{3}$

(6):

$\frac{1}{R6}=\frac{1}{3}+\frac{1}{\frac{5}{3}}=\frac{1}{3}+\frac{3}{5}=\\ \\=\frac{5+9}{15}=\frac{14}{15}=0,933$

Raspuns: rezistenta echivalenta este de 0,933 ohmi