Why transfer of electric charge takes place upto 1 armstrong only?
537229
I dont know that there is a limitation for this. Probably the main reason is the Columbic repulsion factor. Since repulsions will compete with the stabilizion energy of the system, the charge transfer may not takesplace beyond  1A (angstrom)\nI am just guessing anyway!\n\nhope this reason will give some idea!\n\ngood luck!
654251
No, because the charges will have to distribute to opposite sides of the strip (as if it was a loop rather than a mobius strip), however since we are dealing with a one dimensional object (essentially), the charges cannot do this.
1130935
Yes, it IS possible that positive charges can flow in a conductor. Consider a solution of NaCl in water - this solution conducts electricity in the form of Cl- AND Na+ ions moving in opposite directions. In plasma, current is carried by both the free electrons and protons flying around. Electrical current is far more general than just the elementary-school simplification of electrons moving through a wire.
322867
The reason for that is simple.\nAll fundamental forces work on objects carrying a specific type of charge, as in electrical charge, weak charge, colour charge....\nThe charge for gravity is mass. And unlike other of these charges it has only one type (maybe predominantly) - positive mass. For that reason, there is no chance for masses to cancel each other out like when you have a positive charge and a negative charge and together the objest (an atom, for instance) is neutral electrically\nI'm not sure about the weak charge though. Weak forces have a limited range because the bosons that carry them are heavy and can't go far, because of uncertainty (I'm not going into this deeper)\nBottom line: gravity works long range because all masses add up and not cancel each other out.
1057959
You are confused.  Electrons don't conduct electricity.  They, collectively, make electricity.  They do work by going from high potential energy to low potential energy.  The potential energy is usually caused by concentration of charge, because like charges repel each other.  The movement of electrons is what we call electricity.  Charge is a measure of the difference between number of protons and number of electrons, if you multiply the difference by the charge for one electron you get the charge.\nA coulomb is a unit designed to be more usefull than the charge on an electron because it is large enough to work easily with..
837624
Cassandra C has given you a very good answer.\nYou are interested in a single type of reaction: single displacement. It is a redox reaction so you have to think which compound is more happy having extra electrons (more electronegative).\n\nIn the case of A+BX-> AX + B, B(+) in BX is a cation and is missing an electron. If B is a more electronegative negative element than A, then it will steal away the electron from A and the reaction will occur. If A is more electronegative then B is not "strong" enough to steal the electron and the reaction will mot occur.\n\nIn the case of Y+BX -> BY+X you have the opposite. X(-) in BX has already an extra electron. So if X is more electronegative than Y it will not give away the electron and the reaction will not occur.\n\nThis is an oversimplified reasoning. The proper one is that you have to look at the standard reduction potentials (E0) which give the reactivity series. The half-reaction with the highest reduction potential will be the one favoured or more correctly the reaction will occur if the redox potential of the whole reaction is positive.\n\nFor instance you can find a detailed table at\nhttp://www.northland.cc.mn.us/Chemistry/standard_reduction_potentials.htm\n\nLet's see your reaction\nCu+FeSO4 -> CuSO4+ Fe \nIn this case the half reactions would be\nCu - 2e -> Cu(+2)\nFe(+2) +2e-> Fe\n\nFrom the website we get that for\nCu(+2) + 2e->Cu  E01=+0.342 Volt\nFe(+2) +2e-> Fe E02=-0.447 Volt\n\nE01 is more positive than E02 thus Cu(+2) tends to get electrons from Fe and not the other way around so the reaction will not occur \nOR\nYou find the E of the reaction like this.\nThe second half-reaction is in the form we want it. The first is in the reverse. So we just reverse the reaction and the sign for the potential\n\nCu -> Cu(+2) +2e E01'=-0.342\nFe(+2) +2e-> Fe E02=-0.447 and add\n\nCu + Fe(+2)+2e -> Cu(+2)+ Fe+ 2e with E=E01'+E02= -0.342+(-0.447) \n\nTherefore Cu+Fe(+2) -> Cu(+2) + Fe E= -0.789<0 and so the reaction will not occur.
944281
+ve charge on one, -ve on the other....static electricity
350588
It's a bond where electrons are shared between elements.  As opposed to ionic bonds where the charges make the bond.
399371
Basically, when you rub two certain materials, you will create static electricity, which is named that way because the charges do not _flow_, i.e. there is no current.\n\nNot so basically, but still very primitively, there exist two forms of material: ones that "likes" to "steal" electrons, and ones that "likes" to "give" electrons. Whenever these two are put next to each other, the electrons "jump" from one substance to the other, causing a potential difference, and possibly a spark (if the potential difference is high enough).\n\nRubbing two such materials does not cause this effect. It is a common misconception; when you rub two things you are simply increasing the surface area of contact between the two such substances, thereby creating a more noticeable effect.\n\nand the check spelling button screwed up some of my spelling. fix it yahoo! people, please. especially with the word 'effect' which was changed to 'effectt' and the plural of some words.
164386
I like the previous answer, and bobo the king's answer on monopoles as well. However, I thought I might expand on them a bit and make a couple of comments:\n\nA simple understanding of electrical charges is easy, but a deep understanding of electrical charges is quite challenging. We can give examples of electrical charges. The smallest unbound charge we have observed is the charge on an electron or on a proton. Electrons and protons are oppositely charged particles, and so by the laws of electromagnetism, they attract each other. However, two electrons are charged the same so they repel each other, as do two protons. \n\nThe electron charge is negative in our convention, and is about -1.60217646 × 10^(-19) coulombs. The proton charge is positive in our convention and is about +1.60217646 × 10^(-19) coulombs. \n\nHowever, at this point, no one really understands what an electrical charge is, or what causes it. We know that the weak, strong and electromagnetic fundamental forces are produced and transmitted by the exchange of messenger particles; in the case of electromagnetism, these messenger particles photons. We know that there appears to be some deep connection between these 3 fundamental forces; in other words, the weak, strong and electromagnetic forces all appear to be different aspects of the same thing.\n\nMagnetic forces are due to the movement of electrical charges, by the Biot-Savart Law. Electrical charges moving in loops result in electomagnets, which are the basis of a lot of technology, such as electric motors. However, a postulated fundamental unbound magnetic charge, known as a magnetic monopole, has never been observed yet. No one really knows why there are unbound fundamental electrical charges but not magnetic charges (or at least we have not seen them yet). \n\nI am not sure what an electromagnetic charge is. I did some web searching, and I find that this term is used by some who really mean electrical charge, and has been appropriated by assorted pseudoscientists and mystics for their own purposes.
81207
None of them, coz a magnetic field does not affect static charges.\n\nUnless that was the answer you were looking for, I get a feeling something is amiss in the question.
463517
the external electric field creates an electric field in the copper. however, copper is a conductor so charge flows within the copper so that the net electric field is 0.
917329
Realllllll Simply:\n\nCovalent molecules (atoms that make up the molecule) each contribute enough electrons (which are shared) to each other so that each atom thinks is has the nearest Noble Gas configuration. \n\nIonic molecules (the atoms that make up the molecule) transfer the electrons. One atom gains them and one atom loses them. Thus the atoms become ions (as in ionic bond), so they have charges.\n\nGet an "A".
430522
Like charges do not attract eachother.\n\nLike gravity does, but charges do not.
548136
only energy is transferred.  Think about it - if you're in the  ocean and a wave comes by, you bob up and down but aren't swept away.
389562
Well that book must have a misprint or something because q=CV is not accurate. Actually if the potential of a outside conductor depends on the size, then this is a variable dependent, (and therefore mutable) in structure, shape, and amount of conduction based on the charge of q. For if C=q/v, then the isolated conductor's potential to change will be hinder and therefore not fully capable of allowing a full transformation for V due to the charge (power) of q.
829074
this phenomenon is called induction it occurs due to relative accumuation of electrons in the objects having more electrons we have a negative charge....in objects having loss of electrons we get a postive charge..