Topic outline

  • General

    • Announcements Forum

      Welcome to Ohm's Law

      This free and open course curriculum was developed by more than 700 U.S. community colleges in partnership with local industries to prepare students for employment as part of the U.S. Department of Labor’s $1.9 billion  Trade Adjustment Assistance Community College and Career Training (TAACCCT) grant program.

      Expert-Designed Course
      This course was developed by subject matter experts, in partnership with local industries, to ensure the curriculum is aligned with the skills needed to gain employment. To ensure quality, this course was evaluated by third-party experts.

      Free and Open Materials
      As a student, you are free to explore and use these online materials to learn about the subject. As an instructor, you are free to adopt and adapt these online materials in your teaching of the subject. SkillsCommons materials have a   Creative Commons license, which means you can  download material directly from SkillsCommons to your computer. You are free to share, copy and redistribute the material in any medium or format you choose in accordance with the terms of use.


    • Frequently Asked Questions (FAQ) File

      Click here to view Frequently Asked Questions!

  • Syllabus/Overview

    Topics

    • Series Circuit
    • Parallel Circuit
    • Ohm's Law
    • Kirchoff's Law
    • Resistivity
    • Resistance
    • Circuits

    Sample Learning Goals

    • Explore basic electricity relationships.
    • Explain basic electricity relationships in series and parallel circuits.
    • Use an ammeter and voltmeter to take readings in circuits.
    • Provide reasoning to explain the measurements and relationships in circuits.
    • Build circuits from schematic drawings.
    • Determine if common objects are conductors or insulators.
    • Predict how changing each variable will affect the resistance.
    • Explain the difference between resistance and resistivity.

    • Circuit Construction Kit: DC

      Experiment with an electronics kit! Build circuits with batteries, resistors, light bulbs, fuses, and switches. Determine if everyday objects are conductors or insulators, and take measurements with an ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a lifelike view.

    • Resistance in a Wire

      Observe changes to the equation and wire as you play with the resistivity, length, and area sliders.


    • Lab Activity

      • Lab Activity File

        In this experiment you will study the principles of Ohm’s law by examining the basic relationships of voltage, current, and resistance in an electric circuit.