the Hypothesis of oersted discovery how is magnet and electricity related?
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Once oersted was performing his regular experiments with electric currents. He had accidently kept a magnetic needle nearby. At that time there was no relation known between electricity and magnetism. But when oersted passed a current through a wire, he saw a deflection in the needle. When direction of current changed, the deflection was in the opposite direction.\nSo Oersted's law as stated in 1920 is :\nAn electric current flowing through a conductor produces a magnetic field in its surroundings. The strength of the field is a function of electric current and depends on the nature of conductor.\n\nThe further relation between electricity and magnetism was given mathematically be Faraday and Lenz.\nYour question is very much conceptual and related closely to Electromagnetism. I suggest that you check out other internet sites giving indepth info about these topics. It will be helpful for you.\nI hope this answer satisfies your query.
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First of we have to understand magnetism. All magnetic objects produce invisible lines of force that extend between the poles of the object. An easy way to visualize this is to spread iron filings on a sheet of paper and place a bar magnet under the paper. The iron filings will arrange themselves around the magnet and along the magnetic field lines.\n\nIn the simplest terms, Earth can be thought of as a dipole (2-pole) magnet. Magnetic field lines radiate between Earth's north and south magnetic poles just as they do between the poles of a bar magnet. Charged particles become trapped on these field lines (just as the iron filings are trapped), forming the magnetosphere.\n\nThe origin of the Earth's magnetic field is not completely understood, but it is generally believed to be associated with electrical currents produced by convective effects and rotation in the spinning liquid metallic outer core of iron and nickel. This mechanism is generally known as the dynamo effect. \n\nBecause of the rotating outer core, this then produces an electric current, which in turn, produces a magnetic field that is also known to interact with the fluid motion to create a secondary magnetic field. Together, the two fields are stronger than the original and lie essentially along the axis of the Earth's rotation.\n\nHope this helps you out a little :)
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Michael Farday invented electricity as we know it.\nAs a sidenote If Benny Franklin was  a creator of anything it was the lightning rod and the grounding priciple.\nFor centuries electricity has been a challenge to scientists. They have long known that it exists, and have discovered how to generate it on a large scale, but find it difficult to explain exactly what electricity is.\n\nWhere did it all begin?\n\nAround 600 BC Greeks found that by rubbing an 'electron' (a hard Fossilised resin that today is known as Amber) against a fur cloth, it would attract particles of straw. This strange effect remained a mystery for over 2000 years, until, around AD 1600, Dr William Gilbert investigated the reactions of amber and magnets and first recorded the word 'Electric' in a report on the theory of magnetism.\n\nGilbert's experiments led to a number of investigations by many pioneers in the development of electricity technology over the next 350 years.\n\nBenjamin Franklin(in his own words)\n Franklin was an American writer, publisher, scientist and diplomat, who helped to draw up the famous Declaration of Independence and the US Constitution. In 1752 Franklin proved that lightning and the spark from amber were one and the same thing. The story of this famous milestone is a familiar one, in which Franklin fastened an iron spike to a silken kite, which he flew during a thunderstorm, while holding the end of the kite string by an iron key. When lightening flashed, a tiny spark jumped from the key to his wrist. The experiment proved Franklin's theory, but was extremely dangerous - He could easily have been killed.\n\nGalvani and Volta\n In 1786, Luigi Galvani, an Italian professor of medicine, found that when the leg of a dead frog was touched by a metal knife, the leg twitched violently. Galvani thought that the muscles of the frog must contain electricity. By 1792 another Italian scientist, Alessandro Volta, disagreed: he realised that the main factors in Galvani's discovery were the two different metals - the steel knife and the tin plate - apon which the frog was lying. Volta showed that when moisture comes between two different metals, electricity is created. This led him to invent the first electric battery, the voltaic pile, which he made from thin sheets of copper and zinc separated by moist pasteboard.\n\nIn this way, a new kind of electricity was discovered, electricity that flowed steadily like a current of water instead of discharging itself in a single spark or shock. Volta showed that electricity could be made to travel from one place to another by wire, thereby making an important contribution to the science of electricity. The unit of electrical potential, the Volt, is named after Volta.\n\nMichael Faraday\n The credit for generating electric current on a practical scale goes to the famous English scientist, Michael Faraday. Faraday was greatly interested in the invention of the electromagnet, but his brilliant mind took earlier experiments still further. If electricity could produce magnetism, why couldn't magnetism produce electricity.\n\nIn 1831, Faraday found the solution. Electricity could be produced through magnetism by motion. He discovered that when a magnet was moved inside a coil of copper wire, a tiny electric current flows through the wire. Of course, by today's standards, Faraday's electric dynamo or electric generator was crude, and provided only a small electric current be he discovered the first method of generating electricity by means of motion in a magnetic field.\nThomas Edison and Joseph Swan\n Nearly 40 years went by before a really practical DC (Direct Current) generator was built by Thomas Edison in America. Edison's many inventions included the phonograph and an improved printing telegraph. In 1878 Joseph Swan, a British scientist, invented the incandescent filament lamp and within twelve months Edison made a similar discovery in America.\n\nSwan and Edi
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Ancient\nAccording to Thales of Miletus, writing at around 600 BC, a form of electricity was known to the Ancient Greeks who found that rubbing fur on various substances, such as amber, would cause a particular attraction between the two. The Greeks noted that the amber buttons could attract light objects such as hair and that if they rubbed the amber for long enough they could even get a spark to jump.\n\nAn object found in Iraq in 1938, dated to about 250 BC and called the Baghdad Battery, resembles a galvanic cell and is believed by some to have been used for electroplating.\n\n[edit]\nModern\n \nLeyden jars, Museum Boerhaave, Leiden [3].Italian physician Girolamo Cardano returned to the subject of electricity in De Subtilitate (1550)[1], distinguishing, perhaps for the first time, between electrical and magnetic forces. In 1600 the English scientist William Gilbert, in De Magnete, expanded on Cardano's work and coined the modern Latin word electricus from ηλεκτρον (elektron), the Greek word for "amber", which soon gave rise to the English words electric and electricity.\n\nHe was followed in 1660 by Otto von Guericke, who invented an early electrostatic generator. Other European pioneers were Robert Boyle, who in 1675 stated that electric attraction and repulsion can act across a vacuum; Stephen Gray, who in 1729 classified materials as conductors and insulators; and C. F. Du Fay, who first identified the two types of electricity that would later be called positive and negative.
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Magnetic flux and electric flux are always linked with each other.\n\nIf a magnetic flux changes in a certain region in space, a rotational electric field is produced.\n\nA varying magnetic field is inseparable from an electric field.\n\nThe division of electric fields into electric and magnetic fields is a relative matter.\n\nFrom one point there is only a magnetic field in space. From another view point in addition to the magnetic field there is an electric field. \n\nThe converse is also true.\n\nIf an observer in one system of coordinates finds only an electrical field present, then an observer in another inertial system will find that both an electrical field and magnetic field exist.
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The exchange of electrons between atoms, making atoms have a charge, which creates magnetism. Depending on the direction of the spin of the electrons around the nucleus, if an unequal amount of electrons spin in two different directions, there will be magnetism. \n\nMagnetism is also created by running an electric current through a particular substance, electromagnetism.\n\nAll materials have magnetism, but most are in a very minute amount.
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i dont know much about physics but i did a search and this is what i got hope it has what you're looking for:\n\nhttp://science.electronicsinfoline.com/Physics/Electricity_and_Magnetism/
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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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Ben Franklin, electricity.  (You asked for discovery, not invention)
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Magnetic property of a material is due to the arrangement of Domains in it. If you are not of science background, simply think it as it is the arrangement of atoms of the material, which is responsible for its magnetism. If you provide a permanent magnet with electric supply, the arrangement of atoms in it will be disturbed resulting in loss or decrease in its magnetism.\nNot only the electric supply, but heating or even strong jerks can also lead to the disturbed atomic arrangement and therefore decreased or completely lost magnetism.
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Electricity is a property of matter that results from the presence or movement of electric charge. Together with magnetism, it constitutes the fundamental interaction known as electromagnetism. Electricity is responsible for many well-known physical phenomena such as lightning, electric fields and electric currents, and is put to use in industrial applications such as electronics and electric power.
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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.
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Yes, hence the reason it is refered to as the THEORY of evolution. \nSo, your point is???  Do you know that the THEORY of relativity (E=MC^2) explains why nuclear reactions take place.  Perhaps we should stop believing in electricity next.
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Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, which exerts a force on those particles that possess the property of electric charge, and is in turn affected by the presence and motion of such particles. The term electrodynamics is sometimes used to refer to the combination of electromagnetism with mechanics, and deals with the effects of the electromagnetic field on the dynamic behavior of electrically charged particles. Electromagnetism encompasses various real-world electromagnetic phenomena.\n\n\nIt is often convenient to understand the electromagnetic field in terms of two separate fields: the electric field and the magnetic field. A non-zero electric field is produced by the presence of electrically charged particles, and gives rise to the electric force; this is the force that causes static electricity and drives the flow of electric charge (electric current) in electrical conductors. The magnetic field, on the other hand, can be produced by the motion of electric charges, or electric current, and gives rise to the magnetic force associated with magnets.\n\nThe term "electromagnetism" comes from the fact that the electric and magnetic fields generally cannot be described independently of one another. A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction, which underlies the operation of electrical generators, induction motors, and transformers). Similarly, a changing electric field generates a magnetic field.\n\nBecause of this interdependence of the electric and magnetic fields, it makes sense to consider them as a single, theoretically coherent entity — the electromagnetic field. This unification, which was completed by James Clerk Maxwell, is one of the triumphs of 19th century physics. It had far-reaching consequences, one of which was the elucidation of the nature of light: as it turns out, what we think of as "light" is actually a propagating oscillatory disturbance in the electromagnetic field, i.e., an electromagnetic wave. Different frequencies of oscillation give rise to the different forms of electromagnetic radiation, from radio waves at the lowest frequencies, to visible light at intermediate frequencies, to gamma rays at the highest frequencies.\n\nThe theoretical implications of electromagnetism led to the development of special relativity by Albert Einstein in 1905.\n\nedit SI electromagnetism units \nSymbol Name of Quantity Derived Units  Base Units \nI Current ampere (SI base unit) A A \nq Electric charge, Quantity of electricity coulomb C A·s \nV Potential difference volt V J/C = kg·m2·s−3·A−1 \nR, Z Resistance, Impedance, Reactance ohm Ω V/A = kg·m2·s−3·A−2 \nρ Resistivity ohm metre Ω·m kg·m3·s−3·A−2 \nP Power, Electrical watt W V·A = kg·m2·s−3 \nC Capacitance farad F C/V = kg−1·m−2·A2·s4 \n Elastance reciprocal farad F−1 V/C = kg·m2·A−2·s−4 \nε Permittivity farad per metre F/m kg−1·m−3·A2·s4 \nχe Electric susceptibility (dimensionless) - - \n Conductance, Admittance, Susceptance siemens S Ω−1 = kg−1·m−2·s3·A2 \nσ Conductivity siemens per metre S/m kg−1·m−3·s3·A2 \nH Magnetic field, magnetic field intensity ampere per metre A/m A·m−1 \nΦm Magnetic flux weber Wb V·s = kg·m2·s−2·A−1 \nB Magnetic flux density, magnetic induction, magnetic field strength tesla T Wb/m2 = kg·s−2·A−1 \n Reluctance ampere-turns per weber A/Wb kg−1·m−2·s2·A2 \nL Inductance henry H Wb/A = V·s/A = kg·m2·s−2·A−2 \nμ Permeability henry per metre H/m kg·m·s−2·A−2 \nχm Magnetic susceptibility (dimensionless) - -
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Magnetic field has to do with the polarize charge of material, such as Iron.  \n\nIt is believed there is significant Iron near the center of the earth and yes rotation will cause the charges to align and thus create a magnetic field.  This is called the "Dynamo Theory".\n\nJUST BEING IRON DOES NOT MAKE THINGS MAGNETIC.\n\n"Previous theorists have assumed that the entire Core (or the Inner and/or Outer Core) rotates as a single flowing object within the Earth. If that were the case, then all of the charged (ionized) Iron material  would follow a relatively circular path around a single axis that we could call the Magnetic Axis. Basic Physics tells us that when electrical charges follow a closed (relatively) circular path (which is effectively a current), a magnetic field is always created as a result. The measurable evidence of this scenario would be a simple "dipole" magnetic field, with a single North Pole and a single South Pole, geographically exactly opposite each other on the surface of the Earth."\n\nSo if this theory where correct the Earth stopping it's rotation would in allow the magnetic field to fad.  But there are major problems with the theory.  For example it is known that the magnetic poles have flipped (Switched places) several time in Earths past.  Will if we have magnetic poles because of the earth's rotation to switch poles we'd need to reverse the cores rotation.  This would be an ungodly amount of energy.  There is nothing known that would do this once let alone a number of times.  And even if something could do it, we should have seen signs of the massive damage that would have resulted with these forces in play, like the Earth falling apart.   But in fact the poles shifting seems to be a pretty peaceful process on a planetary scale. \n\nAnd that is only one problem with the theory.  This is actually a very, very complex subject and there really is no way to know what effect the Earth stopping would have on the magnetic fields.  But I have attached a link to a very good article on the subject and it's pretty easy reading (Keeps the scientific jargon down and uses layman terms.)\n\nOthers are correct tough in what holds us to the Earth is gravity, not magnetics.  So it's the Mass (How big and dense it is) that keeps us here.  And rotation actually wants to make thing's fly away from it.  So we stay because the Earths gravity overcomes the acceleration.  So the acceleration of 1000mph is actually always enacting upon us, making us want to fly off the planet.  So stopping the Earth will not make us fly off as others have posted.\n\nThink of the spinning rids at the fairs and theme parks.  When you spin you are thrown away from the axis, the best example is the cylinder you go in and stand up against the wall.  When it spins your back is pushed against the wall, even as it turns so you are now spinning vertically like a tired, instead of horizontal like a top.  But when they stop the ride you don't go flying out.  That's because the wall holds you in and your move with the ride.  Well gravity acts like the wall and you move with the earth.\n\nYou would go flying of the earth if it continued to rotate and the gravity field somehow disappeared.
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Yes for instance your nervous system is an electrical system and electricity is effected by electric magnetic pulls.
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Ben Franklin discovered electricity when he was visiting Mars. They have electrical storms something fierce up there, if memory serves me correctly.