What is the difference of a regular magnet and a electric magnet?
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regular magnets are natraly magnitised, they maintain their magnetic properties with out aid of an outside force\nelectro magnets use a coil of wire, with a curent passing through it, wraped around a piece of metal to create the magnitism. when you remove the curent, it loses its magnetism.
593379
what is the difference between the two
202402
A long straight coil of wire can be used to generate a nearly uniform magnetic field similar to that of a bar magnet. Such coils, called solenoids, have an enormous number of practical applications. The field can be greatly strengthened by the addition of an iron core. Such cores are typical in electromagnets. \n\nSolenoid Field from Ampere's Law:-\n\nTaking a rectangular path about which to evaluate Ampere's Law such that the length of the side parallel to the solenoid field is L gives a contribution BL inside the coil. The field is essentially perpendicular to the sides of the path, giving negligible contribution. If the end is taken so far from the coil that the field is negligible, then the length inside the coil is the dominant contribution.
401655
Short answer:  Electricity and magnetism are two sides of the same coin; each can cause the other.  For instance, moving a wire through a magnetic field can create a current, while current flowing through a wire also creates a magnetic field.  Thus, one can generate electricty by using some kinetic energy source--water, wind, what have you--move powerful magnets through wire coils.  There are other ways, of course.
1030003
1 I don't know sorry :&#92;\n\nand 2 its simple. an electromagnet!
370991
When a magnet rotates around a conductor, it generates a current in that conductor. \n\nCurrent itself is actually the electrons in the conductor moving. Some of this momentum for each electron is lost when it collides against an adjacent electron or in moving against the repulsive force between them. The sum total of all this energy lost by all the electrons is seen as heat and the conductor heats up.
363705
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...
309230
Magnetism is actually a relativistic effect caused by moving charge. Current travelling in a wire has a magnetic field surrounding it. Bar magnets are special in that all the magnetic moments (the magnetic effect of electrons orbiting their nucleii) are aligned. In most materials the moments are randomly aligned and cancel each other out.
311306
It's the variation between the magnetic north pole and the geographic north pole.  It varies depending on your location.
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Large commercial generators do not have permanent magnets. The rotating field is magnetized via slip rings that feed current into it's windings. The current is generated by the exciter which is either a small generator attached to the end of the shaft or, in modern applications, an electronic SCR converter.
428919
Basically, all atoms contain positive proton particles and negative electron particles. If protons outnumber electrons then the atom has a positive charge. If there are more electrons than protons then it has a negative charge. Usually, positive atoms and negative atoms cluster together effectively cancelling each other out, but in a magnet they don't. You get all the positive atoms at one end and all the negative atoms at the other. The charge causes it to stick to iron, which will eventually becomes magnetised too as it loses or gains electrons form the magnet.
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An electromagnet , it is temporary magnet.without the electrocity, it is not a magnet.
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One theory of why a material, capable of being magnetised, becomes magnetic (i.e., attracts ferrous material), is that the individual, but randomly distributed 'domains' within are lined up (by some exterior force - e.g., magnetic field from a coil,  'stroking' with an already magnetised piece of iron/streel, etc.), so that the domains line up. The summation of their individual magnetic fields effectively produces one large magnetic field in  the material and makes what we call a magnet!   Some materials, after this process, retain their magnetism and are called permanent magnets, others, such as relay cores, once the external force is removed, exhibit very little residual magnetism.
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Under normal conditions, magnets only affect the ferromagnetic elements (iron, cobalt, and nickel). So unless you have an abnormal amount of metallic iron in your body and the magnet is REALLY strong (think MRI strong) you should be fine.\n\nUnder abnormal conditions, liquid oxygen is magnetic, but it's a different kind of magnetism.
1514
you must use insulated wire or you will effectivly just short out your power source.  most modern electro-magnets use wire that is insulated with a thin coating of a special varnish.  this allows more winding in a given space.  varnish insulated wire is available from nearly any electronics store or catalog or from any business that rewinds electric motors
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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.
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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...