Ответ:
17,14 Ом
Объяснение:
R34=R3*R4/(R3+R4)=30/2=15 Ом
R345=R34*R5/(R34+R5)=15*30/(15+30)=10 Ом
R1345=R1+R345=20+10=30 Ом
Ro=R1345*R2/(R1345+R2)=30*40/(30+40)=17,14 Ом
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Verified answer
Ответ:
17,14 Ом
Объяснение:
R34=R3*R4/(R3+R4)=30/2=15 Ом
R345=R34*R5/(R34+R5)=15*30/(15+30)=10 Ом
R1345=R1+R345=20+10=30 Ом
Ro=R1345*R2/(R1345+R2)=30*40/(30+40)=17,14 Ом
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