Electrical Units

Provided by: ToolingU

“Electrical Units” provides a foundational overview of electricity, including fundamental measures and terminology used to discuss electricity. Electricity is the flow of electrons, which are negatively charged particles. The amount of valence electrons in an atom determines how well it allows electricity to flow. There are two types of electricity, alternating current and direct current, but both flow from negative to positive. Current is measured by certain terms, including amperage, voltage, resistance, and wattage. Ohm’s Law and Watt’s Law describe the relationships between these values in a circuit. When working with electrical systems, knowing how electricity flows and what different terms mean is very important. After taking this class, users should be familiar with the fundamentals of electricity and the vocabulary used to describe it. This enables users to build an understanding of more advanced electrical concepts and discuss them with the correct terminology.

Course Objectives:

  • Describe electricity
  • Identify the parts of an atom
  • Describe how positive and negative charges behave
  • Define atomic number
  • Describe electrons in relation to shells
  • Describe how atoms bond
  • Describe electron transfer
  • Describe how valence electrons relate to conductivity
  • Describe methods of producing electricity
  • Identify the parts of a circuit
  • Distinguish between conventional current theory and electron theory
  • Define coulomb
  • Describe amperage
  • Describe voltage
  • Describe resistance
  • Define Ohm’s Law
  • Describe wattage
  • Define Watt’s Law
  • Distinguish between direct current and alternating current
  • Describe advantages of alternating current.

Recommended Background

  • Recommended for mechanical/electrical/plumbing maintenance technicians.

Course ID







Communication, Critical Thinking, Personal Effectiveness, Electrical Concepts, Circuitry

Method of Delivery


Estimated Effort

2.5 hrs



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