Basic Electrical Circuit

How To : Make a light bulb glow with an electrical circuit

One of the basics of electronics is knowing how an electrical current works. For this video, you will need a 1.2V battery, a lightbulb, and 2 copper wires. First, take the wires and attach one end of each wire to opposite sides of the battery. Have a friend hold the wires ther ...more

How To : Do basic home electrical repairs

Expert electrician Danny Herb demonstrates in easy-to-follow, step-by-step instructions how to replace a light switch and how to replace a wall socket. He begins by showing you how to turn off the circuit breaker, an essential first step to any electrical repair, and offers sa ...more

How To : Replace a split circuit electrical outlet

Learn step-by-step how to replace a split circuit electrical outlet including safety tips and what to watch for to make sure an outlet is installed correctly. Replace a split circuit electrical outlet. Click through to watch this video on iskills.com

How To : Wire a solar cell into an electrical circuit

The Solar Schoolhouse presents this video tutorial on how to use the Solar Cell Classroom Set. The purpose of this set is to give students hands on experience making electricity using sunlight. See what's inside the set, and then see how to wire three different types of electr ...more

How To : Do electrical circuit experiments

Electricity can be conducted through a variety of unexpected mediums, including Jell-O, lemons and potatoes. Learn more about electric circuit experiments in this free science experiment video from a professional audio engineer and instrument builder. Part 1 of 16 - How to Do ...more

How To : Inspect an electrical panel or circuit breaker

In this video tutorial, viewers learn how to properly inspect an electrical panel or circuit breaker in a house. Users should begin by taking off the cover(s) of the individual panels to see the wiring inside. Make sure the wire are connected and that there are no open or brok ...more

How To : Use Ohm's Law for your electrical needs

The first video introduces the basic electrical quantities of charge, current, voltage, and resistance. The concept of quantities and units is explained. The units of Coulombs, Volts, Amperes, and Ohms are described. The three basic formulas of Ohm's Law (E=IR, I=E/R and R=E/I ...more

Making Electromagnetic Weapons : Directed Microwave Energy

Welcome to Microwave Energy—the next part of my Making Electromagnetic Weapons series. For the Electromagnetic Pulse Generator, check out the last three articles (One, Two and Three). I'm sure almost all of you have used a microwave at some point in your lives. As a child, I ...more

How To : Replace a three-way light switch

Versatility and convenience - two of the greatest watchwords for a comfortable home. Fortunately, installing a 3-say switch can add versatility and convenience to your home's lighting system. There are many reasons to replace a light switch. For example, your current switch m ...more

How To : Replace the plug-in of an electrical receptacle

This video home improvement tutorial is a basic explanation of the wiring in a plug-in electrical receptacle, so you'll know what to do when replacing one. Learn how to change the plug-in without short-circuiting or hurting yourself by watching this instructional wiring video.

How To : Install a GFCI outlet properly

A GFCI outlet (which stands for ground fault circuit interrupter) is a receptacle with its own built-in circuit breaker. It is intended to protect you from electric shock and your wiring and breaker panel from being “shorted out”. Building codes require that you have a GFCI o ...more

Making Electromagnetic Weapons : Lasers, Part One

In this series on weaponized lasers, I'll be exploring the function, operation, strength and building instructions for three basic laser weapons; CO2, Diode, and Flashlamp. These laser types are just a few of many, selected because of their simplicity and basic construction (d ...more

How To : Map electrical circuits in your home

If you are planning to add any new outlets, lights or appliances, it is helpful to have a map (or schematic drawing) of your electrical circuits. This will help you determine if you can tap into an existing circuit or if you need to run a new circuit from the breaker panel. In ...more

How To : Make electrical circuits

This video introduces the concept of an electric circuit and how electrons flow through the wire. It describes the difference between an open and closed circuit, and the importance of continuity.

How To : Circuit bend a plastic toy

In this how-to video, you will learn how to perform basic circuit bending. You will need a screw driver, alligator clips, solder, a soldering iron, wires, a wire stripper, a button or switch, and a drill. Open up the device you want to circuit bend. Once the side of the board ...more

How To : Etch a printed circuit board with acid

Systm is the Do-It-Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. They will help you avoid pitfalls and get your project up and running fast. In this DIY episode, see how to etch a printed ...more

How To : Calculate electrical power

This video introduces the formulae for watts in an electric circuit, P=IxE, P=I^R, and P=E^/R. It also explains how P=I^R and P=E^/R are algebraically derived from P=IxE and Ohm's Law.

How To : Make a pair of high-tech night vision sunglasses

In this video tutorial you will learn how to make a pair of high tech night vision sunglasses. You will first need a pair of 100% clear sunglasses with nothing but UV protection. Then two sheets of theatrical photo gels, one congo blue and one primary red. Using the gasses as ...more

How To : Make a rechargeable, solar-powered USB battery

An emergency battery charger for your mobile phone comes in handy, but it's not the ultimate solution; once it's dead it's useless (what a waste). If you want to really get off the metaphorical grid, you can follow the steps in this video to construct a more robust circuit tha ...more

How To : Build a personal weather machine

Plug this baby into your FiOS-powered computer and simulate the real-time climate of any location in the country -- rain, lightning, fog, sunshine. Get creative -- got any new weather effects you've figured out how to add to your Personal Weather Machine? We'd love to hear ab ...more

How To : Circuit bend a battery-powered toy

Take your old electronics and make them scream with glitchy goodness. This an extremely easy project and makes a great project for first-time solderers. Circuit bending involves taking electronic devices that make multiple sounds and wiring in switches to set off glitches or l ...more

How To : Insulate Electrical Outlets & Switches

Prepare all the materials and tools needed for the process. Prepare a circuit tester, an electrical tape, a flathead screwdriver, a pair of scissors, and an electric sealers kit. Then, make sure that you turn off the power at the main circuit box. Place a piece of electrical t ...more

How To : Install exterior motion-sensor lights with Lowe's

In this tutorial by Lowe's, we learn how to install exterior motion-sensor lights with Lowe's. First, you will need to pick out what kind of motion sensor light you want. Most of the kits you purchase will come equipped with all the things you need, you will just need to suppl ...more

How To : Install a Ground Fault Circuit Interrupter (GFCI)

Ron Hazelton shows how to install a ground fault circuit interrupter (GFCI). First turn off the power to the electrical outlet at the circuit breaker or fuse box (check to make sure there's no power in the outlet!). Then remove the electric cover plate. Then gently remove the ...more

How To : Replace breakers in an electrical panel

If for any reason you need to replace or add a circuit breaker to your electrical panel, you'll need to know how to do so. Luckily for you, this tutorial is here to help. In the video, you'll be taken through the process of removing a breaker from your electrical panel withou ...more

How To : Make Arduino circuit boards for robotics

This week on Make Magazine is a project with parts from the Arduino Starter Kit. Skip over building the Proto Shield. Otherwise, it's a simple build that doesn't require any soldering. Arduino is a speaking control for robotics. It can be used in other Make kits or robotic pro ...more

How To : Make a Programmable Piano in Minecraft

There are many impressive accomplishments in Minecraft, too many to name in fact. Sprawling builds, complex machines, and massive servers are the hallmark of Minecraft and things keep getting bigger and better. No one doubts the epic scale Minecraft has reached, but every once ...more

How To : Solder the basics

Soldering isn't hard as you might think. This video will cover the basic soldering techniques for electronics and electrical wiring. It presents a comprehensive look at the soldering process, covering everything from choosing a soldering iron and solder to proper soldering tec ...more

How To : Create an electric tool belt

Tim Carter demonstrates the basic tools (pliers, screwdrivers, strippers) you need for residential electrical repairs, as well as a handy little tool-belt pouch that stores all of the tools. Video shows not only how to create your own electricians tool belt but also how to use ...more

How To : Replace a light switch

Faulty switches are easy to fix; you just have to exercise caution. You will need a screwdriver, a new switch, and a circuit tester. Electrical repairs don't need to be dangerous, just be careful. Watch this video home repair tutorial and learn how to replace a light switch.

How To : Design a safe kitchen

Home accidents. It's up to you to protect your family… your children… from accidents in the home. And there's one place that seems to get the most attention when dealing with safety concerns… The kitchen is one of the busiest, most accident-prone rooms in the house. Design a k ...more

How To : Install track lighting

This video shows how to install track lighting where you want to add or direct light. The first thing to do is to turn off the power to the circuit. If you don't have an electrical box where you want the lighting, you can purchase one at any home improvement store. If you have ...more

How To : Make a working motor out of a magnet

You can make a very simple homopolar motor using just a basic clamp, two strong magnets, a battery and a little bit of wire. Once you've completed the circuit, you'll be able to suspend a drywall screw between the battery and the magnet. Then watch it go!

How To : Build a Laser Trip Wire Alarm System

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more

How To : Make a burglar alarm

Learn how to make a cheap burglar alarm/trip wire alarm with step by step instructions. This is pretty basic but effective. Cardboard, fishing line, batteries, soldering wire, soldering iron, hot melt glue gun, an empty soft drink can, electrical tape, buzzer are some of the n ...more

How To : Jump Start a Car

We've all been there before: We're in a hurry to get somewhere (often in bad weather), so we get in the car, turn the key in the ignition and.....WHUH! WHUH! WHUH! The darned battery is dead! After a stream of choice expletives (that is, if you're anything like me....;o)), we ...more

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