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Kirchhoff's Laws

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A Good explanation of these laws is here

http://www.electronics-tutorials.ws/dccircuits/dcp_4.html

Kirchhoff’s Current Law

It states that the algebraic sum of the currents present at a junction (node) in a circuit is zero.

Current entering the node =  Current leaving the node 

Kirchhoff’s Voltage Law

It states that the algebraic sum of the potential drops in a closed is zero. 


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