E=9 B r=1 Ом U=8.5 B R=?
I=E/(R+r) U=I*R I=(E-U)/r
R=U/I=U*r/(E-U)=8.5*1/(9-8.5)=17 Ом
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E=9 B r=1 Ом U=8.5 B R=?
I=E/(R+r) U=I*R I=(E-U)/r
R=U/I=U*r/(E-U)=8.5*1/(9-8.5)=17 Ом
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