In terms of particles and forces prsent, what determines whether a substance conducts electricity?
413863
It really depends on how free electrons are to move with depends on how the molecules are bonded together. So, covalent bonds, like those in glass, has the electrons constrained to an individual molecule, so they are not free to move much. The same is true of solid ionic bonds, like salt. However, an electrolyte like salt, dissolved in water makes a good conductor because the ions are free to move through the water,  so a current can flow though it. Metals are good conductors because the electrons are not constrained to a particular atom or area, the entire metal bonds together by sharing its electrons across the entire metal, and so they are free to move making it a good conductor for electricity.\n\nEdit: Despite what has been said, the number of valence electrons is not a great way to determine conductivity. For example, most metals, which are very good conductors, have two (and some, like gold I believe, have only one), whereas carbon, which is used in resistors because it doesn't conduct electricity as well, has four valence electrons.
763497
There is not one speed to electricity, there are two.\n\nThe electron drift rate, determined by the number of conductors, the applied, field, and the mean free path, and the field transfer rate aka the speed of light in the material.\n\nAll conductors have resistance - its like friction for electricity.  Even "superconductors" have it, thought its a lot less than in other conductors.  Just like a ball you roll eventually stops, so will electron motion.\n\nIf you had a superconducting power strip, and a very fast plugger, you could make it plug into itself and it would glow for a long time.  The light would make it glow for a lot less long of a time.  Thats all about initial current voltage, and internal resistance.
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Insulators do not have free electrons to conduct heat or electricity.\n\nMetals, on the other hand, DO have free electrons, and so conduct electricity and heat.  ALL elements can be classified as either conductors, semiconductors, or insulators, depending on how easily electrons will flow.\n\nThe only exception to this rule is diamond, which is an electrical insulator (no free electrons), but an excellent heat conductor.  (The reason is that heat can be transferred by atomic vibration of the diamond crystal lattice, but electricity cannot)
1179776
An electronic structure would be a neuron, as it conducts ions along the length of the axon.  This change in ion concentration is equivalent to a difference in volts, ie electrical charge.
638239
A conductor will allow electricity to pass through it, an insulator will not
605330
well, if an object is moving, there must be some physical force applied to it - magnetic field, static electicity, pull from a sting, air pressure from a fan.
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Nico, I have no idea what you are talking about.\n\nElectricity is quite simply a movement of electromagnetic charge. Nothing more and nothing less. \n\nAtoms are made up of (amongst other things) protons and electrons. Electrons have a negative electrical charge and neutrons have a positive charge. When an atom has a surplus of electrons it becomes negatively charged and when it has a surplus of protons it has a positive charge.\n\nWhen a charged atom (ion) or even a single electron moves from one place to another that is electricity. \n\nHousehold electricity is a ‘push’ of electrons from a magnetic generator. It exists primarily as a movement of electrons. In contrast the electrical impulses within your muscles and nerves are created by producing a high concentration of metal ions. Such biological electricity exists primarily as a movement of ions.\n\nElectricity isn’t fire or light or anything else in the universe. It is simply what it is, a movement of charge. There really is no other answer.
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Do you mean what two metals repell each other? Well, in that case, substances repel and attractact based on their polarity.
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Resistance is the physical property of an element that impedes the flow of current.  Here are the basics for a wire:\n\nResistance, R, of a wire is influenced by three main things: (1) the resistivity, p, of the wire, (2) the length, L, of the wire, and (3) the cross-section area, A, of the wire.  The relationship looks like this...\n\nR = (p*L)/A\n\nIncrease the resistivity or length and you increase the resistance.  Increase the cross-sectional area and you decrease the resistance.  Those are the basics anyway.  Hope this helps.
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Things are only affected if they are charge particles in electric fields. I don't think there are any charge particles in plants significant enough for an electric field to cause a change in it.
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Static electricity is simply the result of positive and negatively charged ions. Depending on the charge, these ions repel and attract each other.\nMany electronic parts are made by incorporating microscopic connections to different points within the component. Static electricity can destroy these connections rendering the part useless.\nWe defend against discharge by grounding ourselves before touching any devices or using materials that reduce the ability of the charge to build.\nAnti-static spray works by neutralizing the ions of an item such as clothes, hair, carpets, and other items. It also works by attracting moisture out of the air, increasing the conductive properties of the material the product was sprayed on.
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electricty is form of energy which is created by flow of positive charges(conventional assumption).but actually it is due to the flow ofelectrons inthe direction opposite to the flow of electricity.actually electrons do not travel with that speeed the electric field does the necessary.\n\nbut u have mentioned that matter particles cannot atttain the velocity comparable to that of light.\ni think its not correct\naccording to einstien's theory of relativity\nno particle in this universe is able to attain the velocity greater than that of light even same velocity for some.\nbut if the particle travels with a velocity comparable to that of light then the mass changes accordingly\nm=mo/sqrt(1-v^2/c^2)\nwhere mo is the rest mass of particle\nv is velocity of particle\nc is the velocity of light\nm is the mass of particle at velocity v
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Conduction- the transfer of heat to a particle of matter without the movement of matter itself.\n\nConvection- the transfer of heat to a particle of matter with the help of movement of the matter.\n\nRadiation- the transfer of energy through electromagnetic waves.
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Simply put, it's not a conductor. \n\nhttp://jchemed.chem.wisc.edu/JCEsoft/CCA/CCA1/MVHTM/R0540/S567.HTM
71215
Positive.  Current is typically shown flowing from a high (positive) electrical potential to a low potential, often ground.  Electrons would be attracted to the positive potential, and flow toward it, in the opposite direction that current is defined.
1180786
Charge is a property of atomic particles, the buidling blocks of matter. It can be positive (proton), negative (electrons) or neutral (neutron). Molecules can also be charged. Charges cannot be created or destroyed, they can only be added or subtracted (by adding or subtracting electrons usually). Its like the color of your hair. It could be brunnet, red or black. You can add pigments or it can fade several days later. But you cannot change a person's hair color permanently (of course some turn white when they get old though). So in this sense it is invariant.
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Charge :According to the William Gilbert \nChage is sometimes Posseded by material that makes it possible for them exert electrical force and to respond to electrical force\n\nThe charge of the Particle atom\nProton :Positve chage: Chagre in c 1.602 * 10Power -19\nElecton :Negetively chaged :Chagre in c -1.602 *10Power-19\nNeutron :They Are neural They have no chage :