Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

1. Experiencing Electricity > Experiment 3: Your First Circuit

Experiment 3: Your First Circuit

Now it’s time to make electricity do something that’s at least slightly useful. For this purpose, you’ll use components known as resistors, and a light-emitting diode, or LED.

You will need:

  • 1.5-volt AA batteries. Quantity: 4.
  • Four-battery holder. Quantity: 1.
  • Resistors: 470Ω, 1K, and either 2K or 2.2K (the 2.2K value happens to be more common than 2K, but either will do in this experiment). Quantity: 1 of each resistor.
  • An LED, any type. Quantity: 1.
  • Alligator clips. Quantity: 3.

Setup

It’s time to get acquainted with the most fundamental component we’ll be using in electronic circuits: the humble resistor. As its name implies, it resists the flow of electricity. As you might expect, the value is measured in ohms.


  

You are currently reading a PREVIEW of this book.

                                                                                                                    

Get instant access to over $1 million worth of books and videos.

  

Start a Free Trial


  
  • Safari Books Online
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint