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Rz=1/R1 + 1/R2 + 1/R3... itd.
Więc:
Rz = 1/8 + 1/8 + 1/8 + 1/8 = 4/8 = 1/2 [1/om]
Żeby był om trzeba odwrócić czyli 2 omy.
szeregowo:
Rc= R1 + R2 + R3 + R4= 8+8+8+8= 32 ohm
rownolegle:
1/Rc= 1/R1+1/R2+1/R3+1/R4=1/8+1/8+1/8+1/8= 4/8= 1/2 ohm
1/Rc= 1/2 ohm
Rc= 2 Ohm