We measure the potential difference or voltage with the unit of Volts and we use the symbol of capital V to show this. If you look on your electrical appliances you will see a number next to a V, indicating how many volts the product is designed for. In this example the manufacturers of this usb hard… Continue reading Voltage Labels
Month: August 2022
Voltages Connected With Piece
If we connect a piece of wire to both terminals of a battery then the pressure of the battery will force the electrons to flow in the same direction along the same path. We can then place electrical components in the path of these electrons to do work for us, for example we place a… Continue reading Voltages Connected With Piece
Voltage Basics
Electrical voltage basics. In this video we’re going to be discussing voltage, we’ll learn what is voltage and potential difference, how to measure voltage, the difference between direct and alternating voltage and current as well at why voltages vary around the world. Voltage is what pushes electrons around a circuit. Without voltage the free electrons… Continue reading Voltage Basics
GFCI and RCD`s
In North America, we find another device called a GFCI or a ground fault circuit interrupter. In Europe, this is called an RCD or residual current device. These basically monitor and compare the current in the supply and return wires to a circuit. If the current coming back is not equal to the current being… Continue reading GFCI and RCD`s
Overload Protection
With the overload function, if we slowly add more load to the circuit, we will eventually exceed the rating of the breaker and it will flip to cut the power and protect the circuit. This is known as overload protection. Another feature of most modern circuit breakers is short circuit protection. In this case, if… Continue reading Overload Protection
Circuit Breakers
We find circuit breakers in our electrical panels within our homes and places of work, circuit breakers are essentially a switch that automatically opens to break the circuit if too many electrons pass through it in either an overload or a short circuit scenario.
Fuses
Fuses, in a basic sense, have a thin piece of wire inside them, which is rated to handle a certain amount of current flowing through them. In this case, this one is rated to handle three amps or 19 quintillion 272 quadrillion electrons per second. If too much current flows in the circuit, then the… Continue reading Fuses
Resistors
Resistors make it harder for electrons to flow through a circuit, and that’s why we add resistors to the circuits because they reduce the current, it’s like having a kink in a pipe. This will add resistance to the flow of water, which reduces how much water can flow through. And as the water is… Continue reading Resistors
AC and DC Electricity
If you look on the plugs of your electrical devices, you should find labels from the manufacturers which tell you what the product is designed to handle. For example, this laptop charger tells us that for the device to work, it needs an input of between 100 and 240 volts and 1.5 amps of AC… Continue reading AC and DC Electricity
Conventional Current Versus Electron Flow
Something that’s going to cause you great confusion when you’re learning about electricity is the difference between conventional current and electron flow. These are both theories of how electricity works. When Benjamin Franklin was first experimenting with electricity, he had the idea that something must be flowing inside the materials, he was given a glass… Continue reading Conventional Current Versus Electron Flow