Electrical Repairs

Circuit breakers, whatever their type, share a common function---to protect an electrical circuit against overloading and to avert damage to the circuit and the appliances connected to it, and the...

A multimeter is used to troubleshoot circuits, whether they are located in a DVD player or in an automobile. The tool provides readings for current, voltage and resistance via direct interaction...

Ammeters are used to check electric currents in circuits. They measure electricity and can tell you whether a circuit is working properly or not and whether it is using the proper voltage.

Circuit breakers, found in a home's electrical panel, are a safety mechanism designed to protect your home's electrical wiring. As people use more high-tech gadgets and appliances such as electric...

Electricity is an amazing and abundant power source. Its process takes place on a molecular level where atoms and electrons live. Currents form when electrons move in a flow. For electricity to...

The main circuit breakers are shut off (wires are live/active) to prevent electrocution or death. The transfer switch will be installed next to the load center (house panel), on right or left hand...

You can kill a utility worker if you incorrectly wire a generator to your house. The generator will send current out of the house and into the line, so anybody trying to repair the line will get...

There is no one correct way to split up appliances in your service panel. You can organize them in the manner you find most convenient. The only thing you absolutely need to do is have the cables...

Before you choose a panel, you need to have a rough idea of how many circuits you will have in your house. You can use a 200-amp panel for 40 circuits or less, 300-amp for 60 or less, and 400-amp...

The circuits in the main breaker box are designed as a safety measure in the event of an electrical surge. When they trip, they shut the current off, eliminating the chance of a short or a...

Disasters and various home repairs often create the need to turn off the electricity to the entire house. Make sure you know ahead of time how to do it with these tips.

Learn how switches open and close circuits in electronics - free video.

Learn how to make an electronic circuit that indicates whether or not the garage door is open - free video.

Learn how resistors work in parallel circuits - free video.

Learn how to use integrated circuits - free video.

Learn about the functionality of inductors in electronic circuits - free video.

Learn how resistors are differentiated by color codes in electronic circuits - free video.

Learn how capacitors work in electronic circuits - free video.

Learn how electronic circuits work and why schematics are used to build electronic circuits - free video.

Learn how resistors work in electronic circuits - free video.

Learn how electrons flow in an electronic circuit - free video.

Cross lines in electrical circuits can waste power and be dangerous. A cross line is simply a connection between two circuits that should otherwise be isolated. There are some safe and simple ways...

Your home's electrical equipment—everything from computers to phones—can be taken out in an instant by the surge from a lightning strike. To stop an electric surge, you can add a whole-house surge...

As technology advances, it becomes more and more difficult to understand wiring diagrams. Sadly with everyday appliances becoming more and more complex, it is almost a necessity to be able to...

The next time someone turns on the hair dryer, microwave and toaster oven all at once and sends your house's circuits into a tizzy, be prepared. If you live in an older home with electrical...