What does ac stand for in electrical terms?Journa38 - 10 Answers
AC stands for "Alternating Current".
While DC or "Direct Current" has a steady voltage over time, AC voltage used for power has a sinusoidal waveform shape. As can be seen from the diagram below, the voltage starts at zero, reaches a peak falls to zero again, changes direction and then reaches a negative peak before rising to zero again. One complete section of waveform is called a cycle and the number of times this process repeats per second is called the frequency and is measured in hertz.(Hz). The frequency is either 50 or 60 Hz depending on the country.
During the so called "War of the Currents" between Thomas Edison, George Westinghouse and Nikola Tesla in the 1880s, AC was discredited by Edison and he arranged publicity stunts including the electrocution of an elephant to put forward the idea that AC was more dangerous than DC. While this is true to some extent and AC can disturb the rhythm of the heart, the voltages used in distribution are dangerous in any case whether AC or DC. Another motivation for the "War of the Currents" was that equipment such as motors and generators which ran on DC was widely used and Edison didn't want to loose royalties on patents. Also companies on both sides of the Atlantic had major investment in either AC or DC, and preference of one system over the other would mean someone was going to lose out. The disadvantage of DC was that before the development of semiconductor technology, it would have been complicated to step up the voltage for transmission. This is necessary as energy loss as heat in distribution cables is proportional to the square of the current and this can be reduced by increasing the voltage and reducing the current while keeping the power the same. Edison's system relied on generating stations within miles of homes as power had to be transmitted at 110 volts. Eventually AC won out as the distribution method because of the ease with which transformers could be used to step up and down the voltage.
AC stands for alternating current. That's the type of electric current you have in your home and that most appliances use.
DC stands for direct current, such as your car battery puts out. That is why you need to use that special little adaptor to plug something into the cigarette lighter in your car. It changes the current from DC to AC so that your device is not ruined by direct current.
You can also use an inverter to do the same thing if you are ever somewhere that isn't hooked up to the electric grid. People who live "off grid" need to have an inverter so that they can get their electricity from car batteries that they keep in their battery bank. This is true of most cases in which people use solar or other alternative sources of power. They need to store that power that is produced by charging up 12 volt batteries that they can then draw from during the night, for instance, when the sun is no longer shining. The electric current that comes from those batteries is direct current. Sometimes people can get certain types of lights that can run on direct current, but if they want to use an ordinary appliance, they need an inverter to switch the power from direct current to alternating current.
AC stands for Alternating Current.
DC stands for Direct Current.
An example of utility that uses AC is your toaster, microwave, or oven.
An example of utility that uses DC is an object that uses batteries, such as a flashlight, iPod, or solar powered lights.
A laptop computer has a battery and operates off DC. You can plug it into an AC wall socket to charge it, but the computer is running off DC, not AC.
There are two types of electrical currents.
Alternating current (AC) is the level of energy provided to your homes from the electric companies.
Direct current (DC) is the level of energy provided by batteries.
With the use of a converter we can change alternating current to direct current.
With the use of an inverter we can change direct current to alternating current.
Thank you for your question.
It stands for alternating current. It follows that the voltage changes over a period of time. Most household AC voltage is 120V. With AC, that voltages goes from a range of +120V to -120V. The rate at which that change occurs over time is the frequency which in the U.S. is 60Hz. That means the voltage alternates 60 times per second. If graphed on an oscilloscope, the resulting waveform would appear sinusoidal....
In electrical terms, AC stands for "alternating current" and refers to the movement of an electric charge that periodically reverse direction. (This is in contrast to direct current (DC), in which an electric charge flows in only one direction.) AC is the form in which electricity is delivered to businesses and residences....
It stands for an alternating current which is means the alternating polarity of current.it also stands for air condition which is a cooling device.hope u got answer....
AC stands for Alternating Current.As it names show it is some alternative substance which is used for the flow of current....
AC stands for "alternating current" as opposed to DC which is "direct current"....