Question

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Answer 1

Rs=∑Ri , dar cum rezistoarele sunt identice , atunci Rs=nR

1/Rp=∑1/Ri , rezistoare identice=> 1/Rp=n/R=>Rp=R/n

Rs=nR=>R=Rs/n=20/n

Rp=R/n<=>0,2=20/n/n<=>0,1=10/n²=>n²=10/0,1=100=>n=√100=10 rezistoare