Subtitles prepared by human
Hello! In that video we will see the difference between alternating current and DC. Electricity is a type of energy. transmitted by the movement of electrons through a material conductor that allows the flow of electrons inside. The capacity driver is represented through the electrical conductance Inside of the conductive material the electrons are they can move one way or alternate in two ways, depending on which can distinguish two types of current. First, direct current: the flow of electric current is given in a single sense. It is usually designated with the acronym DC Second, alternating current on electric flow occurs in two directions and It is usually designated by the acronym AC. Most current electrical networks they use alternating current while batteries, batteries, dynamos, generate DC.
Let's look at the current first continuous or DC. In nature the electricity is relatively rare if it compare with how everyday it is in our life; It is only generated by some animals and in some phenomena Natural as rays. In the search of generating an electron flow artificial, the scientists gave realize that a magnetic field could cause the flow of electrons through of a metallic cable or other material driver, but this happened in a single sense, because electrons are repelled by a field pole magnetic and attracted to each other. Thus the first batteries were born and electric current generators continue, an invention mainly attributed to Thomas Edison, in the 19th century. Let's look at the alternating current or AC. TO late 19th century another scientist, Nikola Tesla worked on the development of alternating current looking, above all,
be able to transport larger quantities of electric power and at a greater distance, something that is very limited with the DC. Instead of applying magnetism evenly and steadily, Tesla used a magnetic field rotary; when the position of the poles changes it also changes the flow direction of electrons, the current is produced alternate The change of direction in the flow of electrons is known as frequency and is measured in hertz, a unit that is equal to cycles per second, this means that in an alternating current of 60 hertz it They produce 60 cycles per second. In a cycle the electrons change the direction and return to the original sense, that is, There are two changes of direction per cycle. In an alternating current of 60 hertz, for so, the electron flow changes the direction 120 times per second. Alternating current allows, among others many things, that you can connect a
device to an outlet regardless where is the positive pole and the plug negative. However, in the direct current the connections have always place the positive pole and the negative in a specific position. Another big difference between the current alternating and direct current is the amount of energy that can be Transport in each type. Electricity can't travel far before start losing voltage; the voltage is The measurement of the electrical voltage. Every battery is designed to produce direct current with a certain level of voltage So from the moment of electricity production is already default the distance at which Can transport through wiring. However, alternating current is can produce in a generator and use a transformer to upload or lower the output voltage according to the needs, allowing transport at a much greater distance. Now let's look at the transformers.
The transformers are used in any electrical circuit you need adjust the current voltage electric flowing through it, either a upward adjustment or downward adjustment. For example a power plant produces electricity with a very voltage high so you can travel to large distances and is regulated downward in transformers near the destination final, as homes or businesses until the proper care for your consumption. The current can also be transform from alternating current to direct current and vice versa through of an adapter or voltage inverter, similar to those used in battery chargers of a computer Laptop or smartphone. The charger connects to the home network that uses alternating current and is transformed into direct current before of reaching the device. If you liked this video, don't forget leave us a like and leave your
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