Making a Simple Electrical Circuit

A circuit is essentially a closed path which electrons flow along.  A basic circuit needs to contain a power source (usually a battery), wires, and a resistor (often a light bulb).  In a circuit, electrons flow from the battery down the wires and into the light bulb.  When the bulb receives enough of the electrons, it will light up.

When choosing your light bulb, make sure you pick one which will work alongside the power level of your battery.  You can make it really easy by using a battery snap with the wires pre attached.

Link up the battery to the wires and then to the bulb.  If there are any breaks in the circuit, your bulb will not light up.  It is important to make sure your wires are properly connected to the battery pack!

Electric Shock Prevention: the Basics

Electrical shocks are certainly no joke, and can result in serious injury and even death.  Learning how to avoid electric shocks can help keep you safe and prevent dangerous accidents.  This is a guide for basic safety around electricals to avoid shocks.

Firstly, it is a good idea to be aware how electricity works.  Electricity naturally tries to flow to the earth or ground, and will go through any material it can which conducts electricity to get there.  Certain materials like wood and glass are bad conductors of electricity (the current will not easily go through).  Our bodies are easily able to conduct electricity thanks to the amount of water in our bodies!  An electric shock occurs when electricity flows through parts of the body.

It is very important to understand what you can and cannot do around the house when it comes to fixing or repairing electricial things.  If in doubt of your knowledge or skill, always ask a qualified electrician to perform the work for you.

 

Ways to Prevent Electrical Fires in the Home

Electrical fires are one of the most common forms of house fire.  They can lead to tremendous damage to your home or office!  They are incredibly dangerous and can lead to injury and even death.  You can prevent house fires by following a few basic safety procedures when dealing with electrical plugs and outlets.

Proper maintenance of your electrical goods go a long way.  Make sure your plugs are all pushed in fully to the sockets when in use.  Loose fitting plugs can cause shocks and be a fire hazard.  It is a good idea to cover any unused electrical sockets, as these can be a risk for young children.

You shouldn’t tamper with electrical products or plugs such as bending or twisting the prongs.  Also be sure to only remove and insert the plug by holding the covered top part of the plug rather than the cord.

Measuring Resistance in Electrical Items

Measuring resistance in electrical items is relatively simple with the right tools.  Resistance is the measure of difficulty electrons have in flowing through an object.  It is a little bit like friction when objects are moving over surfaces.  Resistance is measured in ohms; 1 ohm is equal to 1 volt of electircal difference per 1 ampere of current.  Resistance can be measured with an analog or increasingly with digial multimeters or ohmmeters.

When you are testing resistance, you should do so on components rather than in a circuit.  Measuring resistance on a component when it is in a circuit will often cause inaccurate readings, because the multimeter is measuring the resistance from the other components in the circuit as well as the one being tested.  Sometimes, it is useful to test within the circuit though.

Pressure Sensors: The Multi Use Electrical Gadget!

There are many industries which rely on clever electronic gadgets in manufacturing, applications and industry. Pressure sensors are one of those gadgets which is not that heard of outside of the industries which use them all the time.

A pressure sensor can come in a wide range of guises, from heavy duty sensors for larger industry through to miniature packages to gauge pressure in small applications.  Pressure transmitters are amplified outputs with absolute pressure or gauge pressure for reference.  The pressure sensors available for lots of different applications can be bought and ordered online from specialist companies such as Strain Sense, which is the leading figure in strain gauges and pressure sensors in Europe.  They stock a wide range of different sensors for industries such as the motorsport industry, transport and aeronautical systems.

You can discover more about pressure sensors on the Strain Sense website, or try looking them up online to find out more information.