How do lightbulbs works?
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Standard light bulbs contain a tungsten filament connected to electrical contacts inside a vacuum so that there is no (or very little oxygen).  When electricity flows through the high-resistance filament, the filament glows white hot, giving off light and heat.\n\nOther types of light bulbs (fluorescent, halogen, etc.) work a little differently.  If you want information on those, just say the word.
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From a potato, you extend a ground and active wire to a low-watt (4-6) light bulb.  It will light the bulb.
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Energy is measured in watts, so I assume you mean a voltage source of 200v.\n\n(1)\nThe voltage source of 200v applied to the light bulb (laminar) will be 200v.  Since the light bulb is designed for 130v, the supply voltage will likely blow the bulb.\n\n(2)\nHere you have two possibilities, depending on your circuit.\n(a) If you have a parallel circuit, then each light bulb will have 200v across it, and again the bulbs will likely blow because the voltage is to high.\n(b) If you have a series circuit, the voltage across the light bulbs will be subject to their resistance.  Assuming the resistance is the same, then the voltage will be the same, that is, 100v each.\nThe voltage across each light bulb will be equally proportional to it's resistance ratio.
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If u meant what solution would conduct electricity then any salt solution would do  the trick. If you meant what solution would produce electricity to light a bulb then you need to prepare a dilute solution of sulphuric acid ( be careful! wear gloves! Wear goggles! If you are a kid, do it under supervision of an adult..that means your parents or teacher :-) ) In the acid solution suspend two plates of dis-similar metals ( say zinc and copper) and connect the plates to the bulb( a flash light bulb, 1.5 V) using copper wires..and see it glow.\n\nThere are other ways and more elegant styles..however this is the simplest.
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These are specially designed light bulbs that have had their light output calibrated to a standard source at NIST (or maybe some other standards organization). They must be operated at a specified voltage potential. They usually cost an arm and a leg, have a limited lifetime (the filament evaporates over time changing its characteristics and also plating the glass of the bulb with a thin film of metal) and are only as stable as the voltage/current supply you power it with. You must also take care to never touch the glass with bare skin or anything else that might deposit contaminants.\n\nYou also have to be very careful not to touch the glass with bare skin or any other contaminants.
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How will you use a mouse in screwing a lightbulb?
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NO.  When the lightbulb burns out the filament breaks.  The filament is what the electricity flows through to create light.  When this breaks there is no path for current to flow, therfore no electricity is used.
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Regular light bulbs produce a great deal of heat.  The filament used is resistant to the heat but not heat proof.\n\nThe greatest stress on the filament is actually during heating  and cooling.  The metal expands on heating and contracts on cooling.  This stresses the metal.  Over time the stress causes weak spots that eventually fail.  \n\nThat is why a bulb often burns out just as you turn it on.  The heating up stresses the filament.  The other thing you'll find is that the light just worked, then when you try to turn it on again, it is burned out... it has failed while cooling from being turned off.\n\nOther bulbs\nFlourescent bulbs work using gasses in the bulb. They use a metal vapour.  When the bulb is off the vapour condenses (becomes a solid) on one end of the bulb.  It is vapourized using a small heating element.  That is why it takes a second for them to turn on.  Often when they fail they have a slight glow... this is because the heating element has failed and the metal (usually mercury) hasn't vapourized.  The elements fail for much the same reasons a traditional bulb fails.
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The incandescent light bulb or incandescent lamp is a source of artificial light that works by incandescence, in which an electric current passes through a thin filament, heating it and causing it to emit light. The "bulb" is the glass enclosure around the filament that often contains a vacuum or is filled with a low-pressure noble gas to prevent the filament from burning out due to evaporation at the high temperature.\n\nIncandescent bulbs used to be known as electric lamps, extending the use of a term applied to the original arc "lamps", and in Australia and South Africa they are also called light globes. Because of their relatively poor energy efficiency and yellowish color, incandescent light bulbs are gradually being replaced in many applications by fluorescent lights, high-intensity discharge lamps, LEDs, and other devices.
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Ok, this is how you do it.  You need to have the following items: A coil of copper wire, a barrel shaped magnet, a tube, and a bulb.  Take the tube, and this could even be a paper towel cardboard center, and wrap coils of wire around the outside of the tube as many times as you can.  This should cover the outside of the tube.  Now, take the two ends of the wire and connect them to the + and - of the bulb that you will be using.  You must then place the magnet (a barrel magnet is best, but any will do.  The stronger the better) inside the tube, and cover both ends of the tube.  Now, as long as you are shaking the tube lengthwise, and the magnet slides up and down inside the tube, the bulb will shine.  To make a more practical flashlight, you could do one of two things.  Either have an electrical storage device that will hold the charge so you don't have to keep shaking it, or you could rig something up that will keep the magnet moving inside.  Either or both will work.
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From How Stuff Works:\n\n"A three-way bulb has two filaments in it. The next time one burns out, carefully open it (for example, wrap it in a towel and hit it lightly with a hammer) and you will see the two separate filaments. \n\nFor the lowest setting, one filament comes on (it might be a 50-watt filament). For the next setting, the second filament comes on (it might be a 100-watt filament). For the third setting, both come on, for (in our example) a total of 150 watts. \n\nLook also at the end of the bulb's base -- you will be able to see how the lamp controls the two filaments. "\n\nAlso:\n\n"A three-way bulb has two filaments of different wattage -- typically a 50-watt filament and a 100-watt filament. The filaments are wired to separate circuits, which can be closed initially using a special three-way socket. \n\nThe switch in the three-way socket lets you choose from three different light levels. On the lowest level, the switch closes only the circuit for the 50-watt filament. For the medium light level, the switch closes the circuit for the 100-watt filament. For the brightest level, the switch closes the circuits for both filaments, so the bulb operates at 150 watts."\n\nHope this "brightens" your day!
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there is two rooms one with 3 light switches the other with 3 lightbulbs one for each switch.  you have to figure out wich switch goes to wich bulb.  you cannot see into the other room from the one you are in, and you are only allowed one trip to the room with the lightbulbs
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You have to turn one light on for a while so that it'll warm up, turn it off and then turn another light on. then you can go into the room and feel the two unlit bulbs - whichever one is warm is the first one. The lit bulb is the second and the cold bulb is the third\n\n=)
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It takes energy to push that current through your lights and appliances, and that's what your paying for. One way to see it is to consider that what comes out the downstream prong is at 0 volts and therefore of no use to anyone. Or, you could just wire all your lamps in series and see how that works!
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Here's a website that will explain it for you....http://science.howstuffworks.com/lightning5.htm
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the is rotated in the magnet with the help of the wheels which are turned by the driver. this induces electricity to flow through the wire. this electricity is used to light the bulb.\nlook up electro magnetic induction.
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It's impossible to say considering you give no indication of your lighting needs.\n\nThey do make fourescent bulbs which fit into regular incandescent sockets.  The flourescent bulbs use a lot less energy.