Kirchoff's Current Law

In this lab, students will learn about Kirchoff's Current Law (KCL). KCL states that the sum of the currents flowing into any junction in a circuit is equal to the sum of the currents flowing out of it. Kirchoff's Circuit Law is a fundamental law that allows us to analyze parallel circuits and is often combined with Ohm's law and Kirchoff's Voltage Law to solve for unknown values in a circuit. This lab gives students the opportunity to calculate unknown values using Kirchoff's Current Law and then confirm those values by building a real circuit using the NI ELVIS III.

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This is lab 3 of 10 in the course, Introduction to Circuits.


After completing this lab, students will be able to:
  1. Describe Kirchhoff's Current Law and perform calculations using it.
  2. Calculate current through the pathways of a circuit, given a known supply voltage and resistor configuration.


  • Basic proficiency using Multisim Live
  • Basic proficiency using ELVIS III Instruments
  • Basic knowledge of breadboarding
  • Basic knowledge of components and their behaviors


Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design.

TI Analog Parts Kit for NI ELVIS III

A set of components for circuits and electronics education provided by Texas Instruments which includes all components and building blocks of any introductory electronics laboratories.

Multisim Live

Multisim Live is an online, touch-optimized component of Multisim, so students can design and simulate their circuits anywhere, anytime, on any device.

Required Software

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Required Hardware

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