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**Electrical Engineering ⇒ Topic : Kirchhoffs Laws**

What is Kirchhoffs Current Law (KCL)? What is Kirchhoffs Voltage Law (KVL)? |

Mason
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Kirchhoff's laws for d.c. circuits can also be applied to a.c. circuits with a slight modification. In d.c. circuits, we take algebraic sum of voltages and currents whereas in a.c. circuits, we take phasor sum of voltages and currents.
The term `phasor sum' is used because we are dealing with alternating currents. This law is based on the principle of conservation of charge.
By convention, a voltage rise is given a positive sign and a voltage drop is assigned a negative sign. Remember that passing through a source or impedance from + to indicates a voltage drop,while passing through it from to + indicates a voltage rise. | |

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