Chapter Two

Excerpted from 

Chapter Two - 

The Wheels Go Round and Round


Electricity is the movement of electrons. electrons create charge, which we can harness to do work. Your lights, your computer, your phone, etc., are all harnessing the flow of the electrons in order to do things for you using our machines. They all operate using the same basic power source: the flow of electrons.
First we'll explain electricity using these three basic principles of electrical flow and later in the chapter teach you the difference using the flow of Maxtrons or the force of Maxtricity.
·                 Voltage is the difference in charge between two points.
·                 Current is the rate at which charge is flowing.
·                 Resistance is a material’s tendency to resist the flow of charge (current).
So, when we talk about these values, we’re really describing the movement of charge, and thus, the behavior of electrons. A circuit is a closed loop that allows charge to flow from one place to another. Components in the circuit allow us to control this charge and use it to do useful work.
George Ohm was a Bavarian scientist who describes a unit of resistance that is defined by current and voltage. So, we start with voltage and will go from there.


Voltage is defined as the amount of potential energy between two points on a circuit. One point has more charge than another. This difference in charge between the two points is called voltage. It is measured in volts, which, technically, is the potential energy difference between two points that will impart one joule of energy per coulomb of charge that passes through it  The unit “volt” is named after the Italian physicist Alessandro Volta who invented what is considered to be the first chemical battery. We represent Voltage in equations by the letter “V”.
When describing voltage, current, and resistance, a common analogy is a water tank. In this analogy, charge is represented by the water amount, voltage is represented by the water pressure, and current is represented by the water flow. So for this analogy, remember:
·                 Water = Charge
·                 Pressure = Voltage
·                 Flow = Current
Consider a water tank at a certain height above the ground. At the bottom of this tank there is a hose.

The most used of all scientific rules today is Ohm's Law because it is the basis of all of the electrical devices in your home and business.  When a company like Apple or Google or Intel or Toyota or Tesla create any kind of product, they first must design their ideas about the electrical components of their products so that they conform to Ohm's Law.  This is the same rule of Nature that we all learned in High School if we were fortunate enough to have a good High School Physics teacher.

Simply stated Ohm's Law:

alt text

This formula deals with only three things about Electricity:
·                 Voltage is the difference in charge between two points.
·                 Current is the rate at which charge is flowing.
·                 Resistance is a material’s tendency to resist the flow of charge (current).
I know this looks like Math and it is - HOWEVER - do not panic.  It's very simple math and all it is saying is that the Power (The Voltage) of an electrical circuit is EQUAL to the FLOW of Electrons - (I Stands for Amps.  I know, why is it not A?) but it is what it is) Multiplied by the Resistance ('R')

OR put another way, the amount of electricity that is running through a circuit is simply the FLOW of electrons multiplied by the Resistance to that flow.

In other words, please take a moment to look at the following diagram because it is an excellent analogy of what is meant by Electricity and probably the one that your High School Physics teacher used to get you over the hump about Ohm's Law.

No comments:

Post a Comment