difference between 110v and 220v?
927371
Voltage is analogous to the PRESSURE forcing water through a pipe, and electric current is analogous to the liquid FLOWRATE.  220 volts is twice the "electrical pressure" of 110 volts, so it would force twice as much electrical current (amperes) through an appliance as 110 volts would.\n\nAs other answerers have noted, the appliance plugs are usually designed so that you cannot do this by accident.
1172658
Actually it's a question in physics. I will try to explain it anyway:\nassume we have two windings w1 and w2 with  n1 rounds and n2 rounds respectively. If an A.C. voltage of V1 is connected to w1 then a voltage V2 will be induced in w2, satisfying the following equation:\nV1/V2=n1/n2 and for currents we have: I1/I2=n2/n1\nand it doesnt convert ac to dc to do so we should use a rectifier such as bridge rectifier etc
261277
It's simple do this job. First of all you need to set your volt meter to a specific voltage level. Like if you want to check voltage of batteries, it ranges between 1.5 to 14 volts. So set your volt meter dail to DC (Direct Current) with this voltage specification.\nFor checking voltage in your house, its a 110-120 V or 220-240 V. This depends on your location. So now you have to set the dail to AC (Alternating current. THe symbol of AC is " ~ ".\n\nI', also a site here. It would solve the job definitly.\n\n\nhttp://www.ehow.com/how_16767_voltmeter.html
698161
No, the voltages are different
750558
Some drivel here ;-)… To answer your question, you use the rating, i.e. 10kVA (note power out is ~ = to power in, there is very little power loss) and the supply voltage. US = 10kVA/110v = 90A. UK 10kVA/240 = 41A.
1082346
The "60 each" part of your question says you don't understand the most basic aspects of electricity.  Voltage is a measurement between two points.  Think of a 12V car battery.  It is 12 volts between the 2 terminals of the battery.  Another analogy:  two things that are 3 feet apart are 3 feet apart, not 1.5 feet each.\n\nDoubling 120 is 240, not 220, but I 220 is a commonly used number, like 110 for 120, but the standard voltages are 120 and 240.\n\nI think the point about doubling when you lose a neutral is talking about what is called a multiwire circuit.  The service into your house is the same, and some appliances like your dryer, have the same thing.  For a single phase case, a multiwire circuit has 2 phase (or hot) conductors and a neutral, with 120 volts between each phase and the neutral and 240 volts between the two phases.  This is created by a secondary winding on the utility transformer that is 240V, with a tap in the center which is grounded.  The tap is half way so it is 120V to each hot conductor.  If the neutral connection is lost, you still have 240V between the hot conductors, and all the 120V things in your house will be put in series.  For example, a couple light fixtures on 2 separate circuit breakers might be on the two opposite phases.  When the neutral is lost to the utility, there is still a connection of the neutral's of the lights, so you'll have the two lights in series and connected to 240V.  Each light will not have 240V though.  If the load on each phase were the same, removing the neutral will still leave 120V on each side.  That isn't likely, so one phase will get more than 120V (and generally cause damage) and the other phase will be less than 120V, and they will add to 240V.  It would be impossible for it to be so unbalanced that one phase would be 240V and the other would be 0.
38197
Wall sockets have AC voltages, so there is no positive and negative.  One of the two prongs has what is called "Hot", and the other is called "Neutral".  The Neutral is connected to ground back at a distribution center, while the Hot is 110 Volts AC (in the U.S.).  By the time it gets to your home, the Neutral is not quite ground anymore, but is still relatively safe- wheras the Hot is quite dangerous and potentially deadly.\n\nSome appliances are designed to have extra protection between the Hot and people.  For example, a light socket has the 'threads' (the easily touched part) connected to Neutral.  As another example, most appliances and the light switches disconnect the Hot when they are off.\n\nThe different sizes of the sockets prevent you from plugging an applicance in backwords.  If you did this, then the switch would disconnect the Neutral instead, and leave the Hot on- making the device less safe.
111272
this is because of they way americans obtain their electricity 110 volts is the kind of electricity which is produced by atomic nuclear energy the others use wather sun power and wind.
338
110 Volts is nominal and may vary when measured by a voltmeter.  That said, power is supplied using sets of three separate parallel wires that you can see up on most power poles.  The very high voltage there is stepped down using a transformer to supply most houses and businesses with a usable lower voltage.  The voltage between any one of the three wires to ground in a house is 110 Volts for example to light a light bulb.  The voltage between any two wires is 220 Volts and is used for example to power a clothes dryer or kitchen range.  Houses do not use all three wires.  A machine shop may power a large motor by connecting all three wires (in a delta or Y configuration) to obtain 440 Volts.  Therefore the progression of 110, 220, and 440 Volts stems from the use of single, two and three-phase wiring circuits.  Electrical power is conducted cross-country at very high voltages using high tension lines strung in sets of three wires or phases which produces the multiple of 11 you mention.  Incidentally there may be an additional single wire above all the rest to arrest lightning strikes.
738167
Unless you are playing with low voltage, please find some other project. 120 Volt or 220 volt is very dangerous.\n\nAny way you will need all the components in same voltage I say get every thing in under 9 volts to make things easy, they must operate in 6 to 8 volt range so you will have voltage to spare. You may not be able to find them readily.\n\nThis is how it works.\n\nClapping sound is picked up by micro phone.\n\nThis produces a signal, that will close an open circuit on a lamp(or any thing that you need to turn on like a bell).\n\nTo make a package, like the one you buy in the store, it took quite a few years to perfect it, and they had experts working on it.. \n\n1.  9 volt battery. few to operate the systems.\n2.  red and black wire.\n3.  9 volt lamp.\n4.   6 volt Micro phone.\n5.   Sound activated switch, 6 volt \n6.   Tapes electrical.\n7.    cardboard to mount every thing.\n8.    cutting tool to make connections.\n9.    Solder iron and silver solder wire.\n10.   Different types of connectors.\n11.   Glue to put components on the board. \n\nEdmund-scientific.com may have a kit, it is on Internet.\n\nBuy the kit and assemble it.
416798
105W\n\nA transformer changes the voltage, but inversely alters the current to the same degree. Therefore, using P=VI, the power is always the same.
1058449
Its hard to explain in detail without knowing what type of output you specify. An inverter takes a specified DC input voltage and changes it to a square wave, or semi-sinewave output which can be used to power equipment designed to operate from AC output current. The circuitry and components,as well as complexity and cost of the designs vary greatly and are dependent upon the desired output power and desired output waveform. Some sensitive equipment can only operate from a true 60Hz sinewave, and inverters designed to provide such an output are more complex, and therefore more expensive. Any more detail would require you to know basic electronics, check out inverters: schematic diagrams in your browser.
408219
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:
776874
I think you mean 110 Vac as in USA and Canada.  Reason, mainly, lower chance of death if you get an electric shock.  Once 110 V equipment is standardised, it would be very expensive (and dangerous) to attempt a change to 220 V
489114
basically you cannot directly convert 12 volt DC into 120 volt DC, because it is DC. You can only convert these by first convert 12 volt DC into 12 volt AC, using an inverter. Then 12 volt AC can be converted into 120 volt AC through the use of transformer. After which you can convert 120 volt AC to 120 volt DC using a rectifier.
579021
I think you meant WATTS versus volts. You will need to inspect your power supply for that information.\n You need to check out he following website, for more info on what you will truly need 250W sounds a bit low by today's standards - http://www.jscustompcs.com/power_supply/
430412
The wires are placed on the poles according to their voltage - highest voltage on top (farthest away from people) and lowest on the bottom. This means the bottom one(s) is usually telephone (12 volts), then cable tv (30 volts) then the "secondaries" which are what your house runs on (220 volts) and then all the way up top, the "primaries" which carry electricity over long distances, and are usually 13,600 volts.