how are electrons in a circuit like chairs on a ski lift?
483534
They are more like the skiers than the chairs. When a skier sees an open chair, he jumps on it and is bound to it until he gets to a place where he can get off. This is true of electrons and atoms. The electron travels from atom to atom by waiting until it meets the right state to transfer.
814565
Assuming the plates are also superconductors and the dielectric between them is vacuum, the only place for the energy to go is by electromagnetic radiation. The connecting superconducting wire will have inductance so you will have a resonant "tank" circuit with a very high "Q" factor. What you get is damped oscillations at the resonant frequency. Depending on dimensions, it could take a while for all the energy to radiate away, but radiate it will.
510200
More info is needed. What type of control system does the chair use, a modern or older chair for example. The electronic circuitry is fairly straight forward, but without more information little can be done. If you can locate my email on this site, write me and I'll try to help. I have 36 years experience in electronic control systems.\n\nOuzinki
763006
correct. At the anode, electrons flow out of the system.
1101939
A thermocuple might be the one you seek. \n\nThe seebeck effect on thermocouple uses this theory, as there are two different material soldered together to make a single V or U shaped bar, there is a point where those two metals met. When we heat that point, the heat will move the electron, and since one metal has different coefficient than the other, so the electron will move from one metal to the other, thus an electric current will be created.\n\nPeltier effect, uses the vice versa theory, thus if we put electrical current through that thermocouple, then the thermocouple will need to absorb heat from it surroundings, thus, it will lower the ambient temperature.\n\nI haven't got any clue on how effective does this "refrigerant" work, but I think It might, might, might, work..
1132998
Electrons absorb energy to move from a lower level to a higher one.  They release energy going from higher to lower.
960408
http://www.eas.asu.edu/~holbert/ece201/kvl.html
38522
1. flow of electrons\n2. mechanical energy\n3. motor, lightbulb\n4. the rate of flow of electrons
1029853
When the bird perches on a live wire, her body becomes charged--for the moment, it's at the same voltage as the wire. But no current flows into her body. A body is a poor conductor compared to copper wire, so there's no reason for electrons to take a detour through the bird. More importantly, electrons current flow from a region of high voltage to one of low voltage. The drifting current, in effect, ignores the bird. \n\nBut if a bird (or a power line worker) accidentally touches an electrical "ground" while in contact with the high-voltage wire, she completes an electrical circuit. A ground is a region of approximately zero voltage. The earth, and anything touching it that can conduct current, is the ground.
670144
Usually magnets or wedges that are pressed down inbetween two metal rails:\n\n&#92;/\n||\n\nSorry that i couldn't draw well via the keyboard, but imagine the above as a cross section of the wedge, and the lower vertical lines as a cross section of the metal or semi-metal rails...the rails can taper outward a little to create more surface-to-surface contact.  you can imagine the normal force exerted onto one another between the wedge and the rails as the wedge is pushed into the rails, this normal force grows fast quickly as more force is exerted onto the wedge.  and i'm assuming that you're taking or have taken physics courses, so you should know that let's say a box sliding on the floor, has a frictional force of kw, where k is the kinetic friction constant, and w is the weight of the box, for the wedge/rail setup, we would replace w with the normal force, and the equation wouldn't be that simple, in fact, the force would grow almost exponentially as more force is exerted downward on the wedge since the wedge gets wider and wider.  think of it as a brake/rotor setup on a car, but instead of circular, it's linear, and instead of the brake pads squeezing on the rotor, it's the rotor being pushed into the pads.  this similar setup is used on trolley cars, which is why on some trolley trails, you see another pair of rails, situated close together, inbetween the two main rails for the wheels.\n\nnow in an emergency, there is no stopping anywhere else on the roller coaster track except on the boarding/exiting platform.  the engineers made it so that the momentum of the cars will take them through the entire track system no matter what the (realistic) load distribution is.  can you imagine trying to stop an extremely fast set of attached cars on a track with twists, turns, and loops?  and on top of that, the decision when and where to stop the cars is left to some teenage kid in the booth?  very unsafe and unreliable.
224922
positive or negative charge... depending on how tightly they hold their electrons
207943
I second that. If you look, one particular example is electron speed in a wire.  Do the calculation for 1amp of current flowing through a 10 cm radius copper wire and its speed is only on the order of a cm/sec.  Now you gotta ask how then do you communication so quickly over a wire if the electrons only travel at a snail's pace ;)
1177493
I don't see how they can charge Potential Energy to get in.  If it's trying to get in, it's KE duh.
268504
I'm not sure anyone really "know" but there are many teltail clues.  Not all materials are magnetic except perhaps under very powerful magnetic fluxes (MRI's?) but all atoms of materials do have one or more electrons orbiting their nuclii.  We know that electrons can be directed by magnetic flux, perhaps in a TV picture tube, etc.  Therefore, the number and arrangements of electrons of the atoms differ and some create magnetic properties (dipoles or two different poles).  If an iron bar is heated to a high temperature all the iron atoms in the bar are permitted to spin around willy-nilly.  If the bar is then cooled while exposed to a strong magnetic flux (electromagnet?) all its dipoles will align uniformly with the external flux like the needles of compasses aligned with the earth's flux.  When cool, the magnet exhibits the combined strength of all the dipoles that were previously working against each other.  We know that atoms repel each other because of their electrons (and even their nuclii must be forced together to fuse because of protons) like basketballs with ballbearings at their centers, where the skins are made of rapidly orbitting electrons.  Whereas the basketballs would repel each other in any given positions, actual atoms in iron crystals repel directionally and they which can attract or repel a free electron.  The magnet has collectively directed their combined force.  If each dipole has a North and South pole, we would expect the entire magnet to also have a North and South pole, and for like poles to repel, just as in the individual dipoles.  Hope that helps a little.
1146414
http://science.howstuffworks.com/electricity.htm
1057725
As electricity flows into certain atoms (which make up LEDs), energy is transferred to the electrons in the atoms.  Those electrons absorb energy and rise to a higher excited state.  At some later point in time, those electrons fall to a lower energy state.  The difference in energy between the higher state and the lower state is emitted as a photon.  The amount of energy in the photon determines the color.
108122
http://science.howstuffworks.com/lightning.htm