What AC stands for in electricity??
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AC Stands for Alternating current, which is a Wave that carries the current in Frequency Cycles, In the U.S. We use 60Hz or 60 cycles, In Europe/Canada/South America it is 50Hz.  Alternating Current comes in Single, to 3 phases, which are 3 currents carried in the same medium.  Direct Current is a Straight current carried in single form.  Less manageable than AC but much more deadly as it can carry large amounts of Amperage(Speed of the electrons creating heat).  Hope this helped you.
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Calculate the electricity.
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Joules\n\nThis is taken as standard
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Simply put A.C. is easy to transform, from one voltage to another, with relatively little loss. Higher voltages are used for long distances, for example the common wooden power poles are 10,000-80,000V but houshould Power in U.S. is only 120/240V (Probably between 100-300V? in India)
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Three  terms you need to know are:\n\nVoltage- This is the "potential" to make current flow through \n                a wire.  (measured in volts)\nCurrent- This is the actual electrons or "electricity"  which \n               "flows" through the wire. (measured in amperes or amps)\nResistance- This is the quality of a substance which tends to \n                      allow or inhibit the flow of electricity.\n\nOne more term is power. This is measured in Watts and is \n given as 1 Watt=(1 volt)(1 amp)\n\nHere's how it works.  You put a voltage across a wire.\nYou decide the voltage.  It does not change.  The wire and bulb has "resistance" and only lets a certain amount or current flow.  The current flows through the bulb and lights the bulb.\n So both 100 watt bulbs and 40 watt bulbs have the same \n120v "voltage".  The difference  is that less current flows through the 40 watt bulb, so it is dimmer.\nRemember that power or "Watts" is current  times voltage.\nso lower wattage means lower current.\nThe question should be how much current does each bulb use.\nThe answer is: 100 watt-5/6 amp\n60 watt- 1/2 amp\n40 watt- 1/3 amp
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There is no one correct answer. In general, black is used for negative. For AC, white is most commonly positive and for DC, red is positive. These are generalizations and there are exceptions everywhere. Most important is to pick a standard for your use and adhere to it religeously. If in doubt when working with other wiring examples, ask for expert help and/or use a meter.
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The energy rating of electrcal appliances is now displayed on the gizzmo.\nA being the best and e being the worst.\nTry and get one that has an A rating as it will cost less to run and will not cause the power stations to emit so much CO2
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First determine size of AC needed for the room based on room size and occupants. If the room is expected to have several people, a meeting room for example a larger BTU capacity maybe needed.\n\nThe manufacturer of the AC will have the Power (watts) and Current (amps) for the given line voltage.\nKeep in mind that a larger AC unit may require 220VAC vs the typical 120VAC.\n\nThe power is the same for both, but the Current is about half for the 220VAC unit vs the 120VAC unit. The 220VAC unit is more reliable. But not all rooms have the 220VAC service, which could require a new branch circuit to be installed.\n\n1000 BTU/h is approximately 293 Watts\n \nFor BTU to Electric conversion check out the following link:
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for where?\n\nhttp://en.wikipedia.org/wiki/Electrician
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In AC three-pin plug a cable having three wires is connected. The green one is earth or ground, the red one is live or Phase and the third one is called neutral.\n\nEarth is connected to the body of your gadget and the other two are connected to the main circuit. When you switch on the gadget the circuit is completed and the device starts running.
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Are you trying to convert AC to DC?  If it is, you want to use a rectifier.
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As you must be aware, the voltage on an AC line varies sinusiodally with time. ( it goes from 110v to -110v 60 times a second for a standard wall outlet in the US ). that is why it is called Alternating Current.\nhttp://en.wikipedia.org/wiki/Image:Sine_wave.png\n\nA single AC voltage line and a ground line together are a single phase supply. simple.\n\nNow if you take three cables, with voltages varying over them sinusiodally, you have 3 phase supply :). wish it were that simple though. \n\nnow all three sinusoids will reach their peaks simultaneously, and zeroes simustaneously. the instantaneous power on all the lines would be zero at that point. you can avoid this (and is practically more useful to do so) by staggering these sinusoids, so that they reach 0 at different times. the time by which you stagger them is called the phase difference. the standard is to stagger them by 120 degrees as shown here\nhttp://en.wikipedia.org/wiki/Image:Three_phase_voltages.png\n\nthere you are. hope that is cleared up for you :)
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dc is direct current. ac is alternating current.\nac current's voltage varies constantly in a sinusoidal manner, while DC has a constant, flat-line voltage
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Window units run off of 110 voltage x 2 = 220 voltage. Central air runs off 220 voltage. Central air circulates much better than window units. I'd opt for central air.
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It depends on the applied voltage.  Divide the voltage by the resistance which gives you the amperage.  Now multiply the amperage  with the voltage, and that is your wattage.\nW = V²/R\nThis is straight forward for DC; with AC things become a little more difficult, as because of the fluctuation of the voltage, the average is only .707 of the nominal voltage.
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electricity-light bulbs, televisions\nsteel constructioin-buildings, bridges\ninternal combustion engines-autos, lawn mowers
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Electricity is a property of matter that results from the presence or movement of electric charge. Together with magnetism, it constitutes the fundamental interaction known as electromagnetism. Electricity is responsible for many well-known physical phenomena such as lightning, electric fields and electric currents, and is put to use in industrial applications such as electronics and electric power.