There are two laws of Kirchoff. They are very important in circuit analysis. The first law is known as kirchoff's current law and the second one called kirchoff's voltage law

**Kirchoff's Current Law**

Kirchoff's Current Law states that The sum of the current entering a node(the point where two or more circuit elements meet) is equal to zero or the sum of current leaving the node is zero or the sum of current entering a node is equal to the sum of currents leaving the node.The first law is in fact a statement of the conservation of the charge in a circuit.

**Kirchoff's Second Law**

Kirchoff's Voltage Law states that the sum of the voltages\potential differences in a loop or mesh equals zero. This law is a statement of the conservation of energy, because 1 volt is in fact energy expended\dissipated per unit charge.