KIRCHHOFF LAWS


1ST LAW:- It is K.C.L.(Kirchhoff current law)/Point Law/K. Node Law (nodal analysis).

The algebraic sum of current at any node equals to zero. 

Sum of Input currents = Sum of Output currents.

I1+12 = I3+I4+I5.

 

  (∈=0)

Based on law of conservation of charges.



2ND LAW:- It is K.V.L.(Kirchhoff voltage law)/Mesh law/Loop law.

The algebraic sum of voltage in any mesh is equal to zero. 


Ev = 0

Based on law of conservation Energy.