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R1=12
R2=6
---------
a)RS=?
b)RP=?


Răspuns :

Răspuns:

Rs = R1 + R2 = 12 ohmi + 6 ohmi = 18 ohmi

[tex]rp = \frac{r1 \times r2}{r1 + r2} [/tex]

=>

[tex]rp = \frac{12 \times 6}{12 + 6} [/tex]

= 72 / 18 = 4 ohmi