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SERIE PARALELO LEY DE OHMR1+R2=R6 I6=I1=I2 1/R8=1/R6+1/R7 V1=I1xR1
R3+R4=R7 I7=I3=I4 V2=I2xR2
R8+R5=R9 I9=I8=I5V8=V6=V7 V3=I3xR3
V4=I4xR4
V6=V1+V2 I8=I6+I7V5=I5xR5
V7=V3+V4 V6=I6xR6
V9=V8+V5V7=I7xR7
V8=I8xR8V9=I9xR9

R1+R2=R6 R8+R5=R9
680 Ω + 680 Ω = 1360 Ω 680 Ω + 680 Ω = 1360 ΩV9=I9xR9
R3+R4=R7 I9=9v/1360 Ω = 0,0066ª
680 Ω + 680 Ω =1360 ΩI9=I8=I5
0,0066A =0,0066A=0,0066A
1/R8=1/R6+1/R7V5=I5xR5
1/R8=1/1360 Ω + 1/1360 Ω = 680 Ω V5= 0,0066Ax680 Ω=4,5v

V8=V6=V7 V7=I7xR7
4,5v= 4,5v=4,5vI7=V7/R7=4,5v/1360 Ω =0,0033A

V6=I6xR6 I6=I1=I2
I6=V6/R6=4,5v/1360 Ω =0,0033A 0,0033A =0,0033A=0,0033A

I7=I3=I4...