Question

KCL is applied at _________

(a) Loop

(b) Node

(c) Both loop and node

(d) Neither loop nor node

This question was addressed to me during an internship interview.

I'm obligated to ask this question of Kirchhoff’s Current Law topic in section Simple DC Networks of Basic Electrical Engineering

Answer 1

The correct option is (b) Node

The explanation is: KCL states that the amount of charge leaving a node is equal to the amount of charge entering it, hence it is applied at nodes.