somebody knows abouit the panel producing electric from heat.?
353988
I heard of a way of producing an electric courant by heating on side of a PN jonction made of two different type of metal. \nI also saw a alcool lamp with a collier all around that was producing enough electricity for a radio, that was realy long time ago ( may be 60 years ), that collier was made with near an hundred piece of two metal in alternance, and each jonction was a thermal diode.
517654
Need to know the impedance of the solar panel to determine current.
12356
Sounds like static electricty, which tends to develop in windy dry conditions.  Check it out.
928685
An electric INCANDSCENT bulb uses a tungstene filament (twisted wire) that is heated by the current passing through to several hundred degrees.  It is this heat that heats the glass.  It is also the proof of inefficiency of the bulb, because it is transforming 80% of the energy it receives into heat, giving only 20% for light!\nIn the FLUORESCENT tubes, the light is produced by the ionisation of the internal gas (neon or argon).  This ionisation is initiated by heating two small filaments at teach end of the tube, that heat up a small drop of mercury.  Once the mercury is vaporised inside the tube, the "starter" opens, creating a high voltage puls across the whole tube, ionising the gas that then becomes conductor: a small current passes through the gas, and the filaments are disconnected.  Since the ionised and conductive gas has nearly no resistance, the current is limited by the "ballast" (an inductor inserted in series).\nSince the CURRENT is limited, there is no "Joule Effect" (heating) and the tube stays pretty cool.\nTheir efficiency is about 100 times more than a bulb... (in terms of power/light ratio).
184337
You should re-ask.  Do you mean strength or heat or both?  We also produce electricity and build chemicals that store energy.  You need to define output better.
155434
Let me restate what I think you are asking in this experiment:\n\nHow does the electricity heat the hot dog using this device?\n\nTo formulate a hypothesis based on the question you need to examine your knowledge of ways that that something can be heated using electricity. \n\nHere are my ideas: (maybe you can add to this) \nI will give you some unlikely ideas as well as likely. This is good science, to consider the unlikely idea too. \n1. the electricity is flowing through the hot dog and heating it\n2. the electricity is making a magnetic field and that is heating the hot dog\n3. the electricity is heating the wire inside the hot dog and this is heating the hot dog\n\nEach of these can become a hypothesis. After thinking about these, you may realize that if (1) is true, you would get an electric shock if you touched the hot dog. If (2) is true then you could measure a magnetic field with a compass, and anyway does a magnetic field make heat? If (3) is true then the wire inside the hot dog will get hot without the hot dog being on it, and you have a new hypothesis:\n\nThere is a property of the wire that makes it get hot when electricity flows through it. \n\nYou know from looking here: http://www.answers.com/topic/electrical-resistance-1\nThat  \nwhere\nP is the power measured in watts\nI is the current measured in amperes\nR is the resistance measured in ohms\n\nSo, P is the heat in your hot dog. I is the current in the wire coming from the wall outlet. So the test here would be, if you can measure the resistance with an ohm-meter of the device, that if you put the resistance and the current value (measured with an ammeter) into this formula, you will get a value for P that can be measured roughly by the temperature change in the hot dog. You probably don’t have the instruments to make these measurements, but this would be a way you could test your hypothesis. \n\nHope this helps. I'm sure you will want to simplify this some more. \n \nP.S. a watt is actually a RATE of converting electricity to heat, so it has units of  work/time, but I'm trying to keep this simple- so I just called it heat
112062
Heat conductivity? electrical?
938353
When heated the electrons move from the ground state to an exicited state.  They are unstable here and return to the ground state giving off energy in the form of a specific color.  Different energy levels will produce different colors
657155
SOMTHIN ELECTRIAL IS HEATIN UP AND TAKES OUT THE FUSE B4 IT BUURNS APIECE OUT FIND WHERE IT IS PROTECTING AND THAT SOURCE SHOULD BE REPLACED OR MADE WATERTIGHT
808587
so that it gets ionised during electrolysis and the ions help in the conduction of electricity....
1132393
She could be right assuming that the power sources are the same. You are drawing more current ( however slight which has the compound effect of causing more current draw) using both lamp and fan from the same source, thus producing more heat in that circuit ( heat produced is wasted engergy) It is unlikely unless you are doing this throughout your house that you would notice the difference in your electrical bill. Using two separate circuits and devices you theoretically would produce a slightly less amount of heat thus less wasted energy. Remember we are talking minute amounts of difference in heat produced.
519980
Coil wires around it and run electricity through the wires.
515562
Friction, Heat generated to name 2 reasons.
48882
Hot air rises.\n\nThe tiles are on the floor. Ceramics can conduct and retain heat, but not so easily when that heat isn't being piped straight through them.
945004
Some are photo electric...they turn light energy into electricity.\n\nSome are heat collectors...they store the heat and transfer it to the hot water heater.
643695
From electricity...the term alternating current/direct current.
889387
I'll give this a shot!  Typically, any metal expands in size when heated.  The Safari company that builds motorhomes in Oregon used overhead heat lamps to heat up to 40 foot long aluminium panels prior to installation on the outside walls of their motorhomes.  Once heated, the panels were riveted in place on the sides of the motorhome.  Once it cooled down to ambient temperature, the panels become very taut due the contraction. It was a quite good manufacturing method they used for years.