Kirchhoff's Rules

Kirchhoff's circuit laws are two equations that address the conservation of energy and charge in the context of electrical circuits.

Kirchhoff's junction rule states that at any circuit junction, the sum of the currents flowing into and out of that junction are equal.

Kirchhoff's loop rule states that the sum of the emf values in any closed loop is equal to the sum of the potential drops in that loop.

Kirchhoff's rules can be used to analyze any circuit and modified for those with EMFs, resistors, capacitors and more.