Fundamental Physics/Electronics/Kirchhoff's Law

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Kirchhoff's circuit laws[edit]

Kirchhoff's current law[edit]

KCL - Kirchhoff's circuit laws.svg
The sum of all currents entering a node is equal to the sum of all currents leaving the node.

Kirchhoff's voltage law[edit]

Kirchhoff voltage law.svg
The directed sum of the electrical potential differences around a loop must be zero.