Is there a difference in electricity and electromagnetism.  Does electricity always involve magnetism?
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An electric field due to stationary positive or negative electric charges starts to look a bit like a magnetic field due to north and south magnetic poles when you move through it faster and faster.   If you could reach the speed of light it would look exactly like a magnetic field, and conversely a magnetic field looks more and more like an electric field the faster you move.   The reason physicists lump these two phenomena together is that they're two aspects of the same thing, and what they both look like depends on how fast you're moving through the electric or magnetic field.   So the answer to your question is yes, there's a difference, and yes, electricity always involves magnetism.   An electromagnetic wave, like light, consists of an oscillating electric field which produces an oscillating magnetic field which produces an oscillating electric field which...
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electric induction is the induction of current...\nyou can induce current by have a coil with current i, and a magnet...\nthe magnet may be the one moving forth and back or the current-carrying coil, or both...\nac dynamo is what makes current alternating.... or changing in direction... unlike dc....\nwhen dc makes dynamos mechanically usable, dynamos are used make ac...
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poorcocoboiboi is correct, however the electric field is still there even after the charge is moving. In fact it is the moving electric field that produces the magnetic field.
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Magnetism is an inherent property of a material or object, e.g. the earth.\n\nElectromagnetism is magnetism created by an electrical field - electromagnet - and these can be found all over the place - electrical relays, doorbells (check yours you will almost certainly find that it contains an electromagnet, etc.\n\nIn most cases when the current is turned off the electromagnetism goes.  However, it is possible to magnetise something permanently by use of electromagnetism.
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Electro-magnets use electricity to temporarily align all of the atoms in a ferrous material to a N-S position. When the electricity is turned off, the atoms return to their original misaligned state, losing much of its magnetivity. It never completely loses all of it, as some atoms will remain in the alligned state, creating a "Gauss" feild around it.
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The previous correspondent confirmed that only a moving charge is affected by a magnetic field, but didn't actually address the question of *why* that is the case.  I will attempt to do so.  First, realize that electric fields  and magnetic fields are, under the theory of special relativity, two interrelated aspects of the same thing. Like momentum and energy, or space and time, they vary, depending on the reference frame of the observer. The values for the electric and magnetic fields in one reference frame can be transformed to the values for another reference frame by using the Lorentz transformation.\n\nNow, imagine a charge at rest in a given reference frame.  It exerts a force on other charges given by Coulombs' law.  The amount of force it exerts on those other charges depends only on the amount of charge each of our charges has, and the distance between them.  Another way of looking at this is to say our charge sets up an electric field, and the force on the other charges depends only on the strength of the field and the amount of the other charges.\n\nNow imagine that we are looking at this charge from the point of view of a reference frame that is moving with respect to the charge, so that to us the charge appears to be moving.  We take the formula for the force exerted by the charge, apply the Lorentz transformations which we have to use to relate quantities in different reference frames, and lo and behold, we not only get a force that depends on the amount of the other charges, we get a term that depends on the relative velocity of the charges.  What's more, the force of this new term is at right angles to the relative motion.  We identify this new part of the force, the part that depends on relative velocity of the charges, as the magnetic force.  Hence, the magnetic force depends on the relative motion of the charges.
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They use  Electricity and Magnetism ( by Purcell) \nBerkeley Physics Course. Vol. 2. (Edit.  McGraw-Hill) for Physics2 (elecricity and magnetism) \nand for statics must be: Statics (by Waclaw Zalewski and Edward Allen).\n\n...why don't you get into the webpage? , they give you courses for free and also you can check his solved exams, it's pretty cool.
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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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Electromagmetism is one of the four fundamental forces of nature (the other three are gravity, the strong nuclear force, and the weak nuclear force.)  Electromagnetism acts only on charged particles (e.g. protons, electrons).  Electromagnetism has the ability to act over infinite distances.
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ok, well, let's start with a basic description of magnetic materials.\n\nmagnetism has to do with the way electrons in a material interact with each other.  electrons have some basic properties (mass, charge, for example) and also a property called "spin".  \n\nit can be measured that any given electron has what is called a "magnetic dipole moment", which basically means that every electron behaves like a tiny bar magnet.  so the property of "spin" was devised to explain this - if you have some electric charge and move it around in a closed loop, a magnetic field is generated inside the loop.  this phenomenon is called induction and it's the basis for lots of real-life magnets.  this is why you usually see electromagnets made by wrapping wire around in a coil - when you pass an electrical current through the wire, the electrons in the metal basically move in a loop, and this causes a field to form.\n\nanyway, you can think of an electron as a little ball of electrical charge.  if the ball is spinning, then the charge on the ball is moving around in a circle - so this would create a magnetic field.  \n\nanother measurable property of this "spin" is that it is quantized - this means that the electrons can only spin at certain speeds and orientations.  different particles have different spins, and for an electron there are 2 spin states - usually referred to as "spin up" and "spin down" because the axis of the dipole moment points in different directions.\n\nthe difference between the various types of magnetic materials (ferromagnetic, antiferromagnetic, paramagnetic, etc) is in how the spins of all the electrons in the materials are oriented.\n\nin a ferromagnet, the spins are (mostly) oriented so that they're all pointing the same direction.  this causes the magnetic fields from each electron to add up, and you get a large macroscopic magnetic field as a result.\n\nin an antiferromagnet, on the other hand, spins are oriented so that neighboring electrons point in opposite directions.  this is a highly-ordered state, and in many materials only forms when you cool the substance below a critical temperature called the "neel temperature".  above this temperature the random thermal fluctuations take over and the spin ordering falls apart.\n\nantiferromagnetism is observed in transition metal compounds, in particular metal oxides, such as nickel oxide (NiO) or cobalt oxide (CoO).  the behavior of electronic spins are a subject of intense research these days, and so a simple and well-defined picture of their behavior is not easy to come by.  \n\nhowever, it is thought that the long-range interactions of electronic spin is responsible for a number of interesting effects that are being studied in transition-metal oxides.  one well-known example is in the study of high-temperature superconductors, which are often oxides of transition metal alloys.  the electrons involved in the superconducting effect act in pairs called "strongly correlated" electron pairs, and it is thought that the electrons interact via coupling through their spin.\n\nhere are some links so you can learn more:\n\nhttp://ghmfl.grenoble.cnrs.fr/magnetisme/recent5.htm\nhttp://www.jhu.edu/~gazette/2002/30sep02/30magnet.html\nhttp://www-als.lbl.gov/als/science/sci_archive/peem_spin.html\nhttp://en.wikipedia.org/wiki/Antiferromagnetism
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Electromagnetic waves??? thats something ive never heard of before. how about posting the article or the website online? \n\ni do know that electricity can be "transmitted" by magnetism, via electromagnetic induction. according to faraday's law, a changing rate of magnetic flux linkage induces an electromotive force, and thus induces current on a conductor. check out faraday's law at wikipedia for more info dude...
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NO.......magnetic monopoles havent been discovered yet.\nSo magnetism is still in accordance with Maxwell's equation,\ndiv(B)=0
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DC is Direct Current in which the electrons move in one direction through the wire all the time.\nAC is Alternating Current in which the electrons flow one way for a short time and then switch directions and flow the other way for a while.\nThe constant direction switching does not interfere with the work the electricity does if the devices using it are properly designed. Some devices, like incandescent light bulbs, work equally well with either type of current. Other types of devices, like transformers, depend on the constant switching to operate.
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Heat can be compared to magnetism or gravity.  You need the movement or change of heat energy to generate electricity, just like you need movement or change of a magnetic field to generate electricity.\n\nYou can generate electricity from DIFFERENCES in heat energy levels (Seebeck effect)\n\n\nIf you're looking for a non-mechanical device, check out a Peltier junction.   This is an array of dissimilar metals (thermocouples) that will generate electricity as heat energy moves through it.   It is also a reciprocating device, meaning that if you put an electrical current through it, one side will get hot, and the other cool.  It is the technology used in portable electric travel coolers that you see these days.
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Antigravity, but that hasn't been proven.  Magnetism works when you have two magneticaly charged objects.
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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.
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regular magnet is a permanent one and electromagnet is an artificially created magnet which behaves as a magnet when current is passed through a wire around a iron bar\nelectromagnets are widely used