Usuario:Jalgonm/pruebas

$I=I_{i}+{\overline {I_{s}}}$

$I_{s}\,{\overline {R_{s}}}={\overline {I_{i}}}\,R_{i}$

${\overline {R_{s}}}={\frac {{\overline {I_{i}}}\,R_{i}}{I-{\overline {I_{i}}}}}$

${\overline {R_{v}}}={\frac {V}{{\overline {I_{i}}}-R_{i}}}$

$V={\overline {I_{i}}}\,(R_{i}+{\overline {R_{v}}})$

$R={\frac {E}{I}}-{\frac {E}{I_{i}}}$

$E=I\,(R_{i}+r_{i}+R_{p}+R'_{p}+R)$

$E=I_{i}\,(R_{i}+r_{i}+R_{p}+R'_{p})$