Kirchhoff’s Laws

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Kirchhoff’s Laws:

1.       Kirchhoff’s first law or current law (KCL):
-          The algebraic sum of the current meeting at a point of electrical network is zero.
-          Positive sign is taken for the current magnitude if it is flowing in to the node.
-          Negative sign is taken for the current magnitude if it is flowing out of the node.
-          At a node, ∑ i=0 .

2.       Kirchhoff’s second law or voltage law (KVL):
-          In any electrical network, the algebraic sum of all branch voltages around any closed path or loop is always zero.

-          Around any closed path or loop, At a node, ∑ V=0 .

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