Circuitos
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No existen resistencias negativas.
RA=1/5+1/4+5/16=61/80Ω RB= 7/18Ω RC= 427/1658Ω RD= 5/61Ω RE= 1/14Ω RF= 5/131Ω RG=1/8+2/3=19/24Ω RH=23Ω +R1 RT=I*V… (.25A)(30V)=7.5Ω
R1=-.70Ω
No existen resistencias negativas.