Kirchhoff’s Laws
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 .