What Is 120 Voltage
This can be confusing but the bottom line is they are referring to the exact same thing.
What is 120 voltage. Line and phase voltage. The longer answer is. The short answer is. The table shows that in most countries the mains supply is between 220 and 240 volts 50 or 60 hz.
Nothing they are the same. You ll often hear voltages in your home referred to as 110v 115v or 120v. The 120 volt label is just a nominal figure. It was used almost exclusively for powering public street lights.
But as it turns out both the 120 volt and 240 volt alternatives can be beneficial depending on your needs and appliances. The current in an electrical circuit with a voltage of 120v and 12ω of resistance is 10a. The public wanted them brighter so the power company turned up t. Below is a full overview of all countries of the world and their respective plugs outlets and voltages frequencies used for domestic appliances.
Countries that operate on 100 127 volts are greatly outnumbered. A 240 volt outlet on the other hand is larger with room for three individual plugs or four plugs of varying size. V i x r. What is the voltage across an electrical circuit with a current of 10a and 200ω of resistance.
The current in an electrical system with 10a and 200ω of resistance is 2000v. Alternative some heavy appliances such as electric clothes dryers require 240 volts of power. Other voltages exist and some countries may have for example 230 v at 60 hz. The voltage in the usa started out at 100v.
You may think that the safe route then is to simply go with 120 volt outlets throughout your home. V 10 x 200. 120 and 240 volts along with neutral and ground is then distributed to outlet boxes switch receptacle light fixture etc throughout the dwelling. 110v 115v 120v 220v 230v 240v.
There is a big difference between 110 vs 120 volts when it comes to electricity even if most american outlets distribute somewhere between 110 and 120 volts at any given time as the 120 volt power supplied by the electric company often is reduced by up to 10 volts on the way to the receptacle. A voltage of nominally 230 v and a frequency of 50 hz is used in europe most of africa most of asia much of south america and australia. For example for a 208 120 volt service the line voltage is 208 volts and the phase voltage is 120 volts. Residential voltage in the usa and canada is 120 240 volts ac.
The actual voltage could be anywhere in the range of 110 125 volts and modern electrical devices are built to tolerate the fluctuations. 120v is the ac voltage on a single hot wire in your home with respect to neutral or ground.