diff --git a/Electro/1.md b/Electro/1.md
index af97dd3..a38e6bc 100644
--- a/Electro/1.md
+++ b/Electro/1.md
@@ -30,8 +30,49 @@ $req = \frac{1}{\sum 1/R_i 1/R_2}$
 $req = \frac{1}{\frac{R_1+R_2}{R_1*R_2}}$
 
 $req = \frac{R_1*R_2}{R_1+R_2}$
-# Nota
 
+# Circuito en serie
+[[./1.png]]
+
+## Calcular I
+$R = \frac{V}{I}$
+
+$R_t = R_1 + R_2 + R_3$
+
+$R_t = 47 \Omega$
+
+$I = \frac{12v}{47 \Omega} = 0,255A = 255mA$
+
+## Calcular los V_Rn
+$V_{r1} = I * R_1 = 255mA * 10 \Omega = 2,55mV$
+
+$V_{r2} = I * R_1 = 255mA * 15 \Omega = 3,82mV$
+
+$V_{r3} = I * R_1 = 255mA * 22 \Omega = 5,61mV$
+
+## Calcular Potencia
+
+$E = \sum^n_1 V_{r1}+V_{r2}+... = 11,98mV$
+
+$P_{ent} = V * I = E * I = 12V * 0.255A = 3.06W$
+
+$P_{const} = P_{r1} + P_{r2} + P_{r3} = 3.053W$
+
+$P_{r1} = V_{r1} * I = 2.55V* 0.255A = 0.65W$
+
+$P_{r2} = \frac{V_{r2}^2}{R2} = \frac{3.82^2}{15} = 0.973W$
+
+$P_{r3} = R_3 * I^2 = 22 \Omega * (0.225A)^2 = 1.430W$
+
+## rtas
+
+| R |   I   |  V   |  P   |
+|---|-------|------|------| 
+| 1 | 0.255 | 2.55 | 0.65 | 
+| 2 | 0.255 | 3.82 | 0.97 | 
+| 3 | 0.255 | 5.61 | 1.43 | 
+
+# Nota 
 - Filtro = Capacitor
 
 ## Descripcion electricidad