DODY TZ

Understanding Basic Electrical Theory No single discovery has affected our lives, our culture and our survival more than electricity. Electricity is everywhere; it lights our way, cooks our food and can even brush your teeth. For an example, imagine where the medical field would be without electricity and in that sense how many lives have been saved due to electrical devices like defibrillators, pacemakers, etc.  From talkies to eight tracks to screaming “I want my MTV”, even hashtagging, none of it would be possible #WithoutElectricity. Read on to discover more about basic electrical theory.   What is Electricity? So what is electricity and where does it come from? More importantly, why is carpet, socks and a doorknob a bad combination? In its simplest terms, electricity is the movement of charge, which is considered by convention to be, from positive to negative. No matter how the charge is created, chemically (like in batteries) or physically (friction from socks and carpet

What makes the lights in your room turn on? Why does the flashlight come on when you press that switch button? They happen because there is energy flow in the form of electrical energy. Electrical energy exists and can be experienced in many ways and amounts. For example, you may feel a little shock when you touch a metal part of your TV, or feel a shock when you touch clothing from the laundry. Electricity can also be in lightning bolts. To understand this very powerful thing, let us first learn where and how it all comes together. What is electricity? Electricity exists in the smallest particle in nature called the atom. The atom is the basic building block of matter. An atom is so small that human eyes cannot see it. We only see them with the help of very powerful magnifying devices. Below is an illustration of an atom. In the atom, there are three sub-atomic particles —  Protons, Neutrons and Electrons . Protons and Neutrons are located right in the nucleus (centre or cor