KIRCHHOFF'S VOLTAGE LAW

Kirchhoff's Voltage Law (LKV) is a fundamental tool in the analysis of electrical circuits. It states that the sum of the voltage changes in a closed path is equal to zero.
Statement of the LKV
"The sum of the voltage changes in a closed path is equal to zero."
Symbology
1. *V*: Voltage
2. *R*: Resistance
3. *I*: Current
4. *L*: Inductance
5. *C*: Capacitance
Application of the LKV
1. Identify the closed paths (loops) in the circuit.
2. Label each voltage on each element.
3. Apply the law: ΣV = 0
Example
Analysis of a circuit with two resistors and a voltage source.
Steps
1. *Identifies loop*: A-B-C-A
2. Voltage label:
3. *V1*: Voltage source
4. *V2*: Resistance 1
5. *V3*: Resistance 2
6. Apply the LKV:
V1 - V2 - V3 = 0
Advantages
1. Facilitates the analysis of complex circuits.
2. Allows you to calculate voltages and currents.
Limitations
1. Only applies to linear circuits.
Applications
1. Design of electronic circuits.
2. Analysis of electrical networks