Electricity 101: A Complete Beginner’s Guide

This guide explains the basic quantities: Watts, amps, volts, ohms and kWh

Eugene Brennan
Everyday Science

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Public domain image by FelixMittermeier on Pixabay.com

Understanding the Basics

This guide for consumers and students explains all about volts, amps and watts and how they apply to home appliances and circuits. The equations are really quite simple, and you’ll find some examples on how to apply them to home appliances.
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How to Understand Electricity: Volts, Amps, Watts and Electrical Appliances

In this tutorial, you’ll learn about:

  • volts, watts, amps
  • power consumption of appliances and kilowatt hours (kWh).
  • Ohm’s law and resistance
  • resistivity and how it affects the resistance of a material
  • fuses and how they protect wiring and appliances
  • how electricity is produced
  • devices used to measure voltage, current and resistance
  • the effects of electric and magnetic fields
  • conductors, insulators and superconductors
  • the basics of AC and DC

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Eugene Brennan
Everyday Science

Eugene is an engineer with a BSc(Eng) degree in Control and Instrumentation. He’s passionate about gardening, DIY, making things, cycling & photography.