What would be the correct equation representing Kirchhoff’s Current Law (KCL) at node a for the given network?

CONCEPT:

• Kirchhoff’s Current Law:  The total current entering a junction or a node is equal to the charge leaving the node as no charge is lost.
• The algebraic sum of every current entering and leaving the node has to be null. This property of Kirchhoff law is commonly known as Conservation of charge.
• Node: Node is a point in a network where two or more circuit elements are connected.

I1 + i2 + i3 + i4 + i5 = 0

EXPLANATION:

Calculation:

By applying KCL, at node a

i1 – i2 – i3 + i4 = 0

Additional Information

KVL: It states that the algebraic sum of all voltages around any closed loop in a circuit must equal zero.

KVL: Vs – IR1 – IR2 = 0