2.2 Kirchhoff's Laws

• Kirchhoff’s current law (KCL) - The current flowing out of any node in a circuit must equal the current flowing in. That is, the algebraic sum of all branch currents flowing into any node must be zero.
• Kirchhoff’s voltage law (KVL) - The algebraic sum of the branch voltages around any closed path in a network must be zero.
• Voltages across two parallel connected elements must be the same.