The document describes calculating the current (I6) in a branch of a circuit by working backwards from the end of the branch to the source. It assigns I6 to the current in the last branch and then proceeds backwards through the circuit, maintaining that value of I6 as it calculates voltages and currents at each node using series and parallel rules until it reaches the input voltage and can solve for the value of I6.

1. Se asigna una variable a la ultima corriente
de rama y se procede de regreso hacia la
fuente, manteniendo asignada esta
corriente

2. SERIE
I5 = I6 Req 1 = R 5 + R 6
PARALELO
V 4 = V R eq 1
V4
I6
R eq 1
V4
I6
1 2
V4
I6 V4 I6 3
3

3. V4
I4
R4
I6 3 1
I4 I6
6 2
PARALELO
I3 = I4 + I6
1 3
I3 = I6 + I6 I6
2 2

4. V3 = R 3 × I 3
3
V3 = 4 × I6
2
3
V3 = 4 × I6
2
V3 = 6 I6
PARALELO
V2 = V 3 + V 4
V2 = 6 I6 + I6 3
V2 = 9 I6

5. V2
I2
R2
I6 9 3
I2 I6
6 2
PARALELO
I1 = I 2 + I 3
3 3
I1 = I6 + I6 3 I6
2 2

6. V1 = R 1 × I1
V1 = 5 ×3 I6
V1 = 15 I6
VOLTAJE DE ENTRADA
(SERIE)
V E = V1 + V 2
V6 = R 6 × I 6 240 V = 15 I6 + 9 I6
V6 = 2 × 10 A 240 V
I6 =
V 6 = 20 V 24
I 6 = 10 A