Michael Faraday. Michael Faraday
The term 'induction coil' is also used for a coil carrying high-frequency alternating current (AC), producing eddy currents to heat objects placed in the interior of the coil, in induction heating or zone melting equipment. Developed beginning in 1836 by Nicholas Callan, Charles Page and others, the induction coil was the first type of transformer. They were widely used in x-ray machines, spark-gap radio transmitters, arc lighting and quack medical electrotherapy devices from the 1880s to the 1920s. Electromagnetic induction was first discovered by Michael Faraday, who made his discovery public in 1831. It was discovered independently by Joseph Henry in 1832. When the coils are stationary, no current is induced. But when the small coil is moved in or out of the large coil (B) , the magnetic flux through the large coil changes, inducing a current which is detected by the galvanometer (G) . 1821 The first electric motor was invented by Michael Faraday. 1826 Georg Ohm defined the relationship between power, voltage, current and resistance in “Ohms Law.”. 1831 Using his invention the induction ring, Michael Faraday proved that electricity can be induced (made) by changes in an electromagnetic field.  Credit: Wikimedia Commons. Electricity is a form of energy and it occurs in nature, so it was not “invented.” As to who discovered it, many misconceptions abound. Some give credit to Benjamin Franklin for discovering electricity, but his experiments only helped establish the connection between lightning and electricity, nothing more. Others who worked to bring the use of electricity to where it is today include Scottish inventor James Watt, Andre Ampere, a French mathematician, and German mathematician and physicist George Ohm. And so, it was not just one person who discovered electricity. In 1831, the English scientist Michael Faraday discovered that an electrical current could be induced in a copper wire by a moving magnetic field. This led to two crucial inventions: the dynamo and the electric motor. It had been evolved by many Europeans and in 1852 the first 'modern' light bulb was invented. Edison bought his patent in the 1870s from other inventors and experimented with different filaments. Quite ironic as this pages is about the misconception of who first harnessed electricity. The sweeping of the conductor by that expanding magnetic field will set up an emf that will oppose the emf that was creating it.   Comment Technically, there is no such thing as an 'induced current'. It is voltage that is induced. Any current flows as a result of that induced voltage being applied to a load. Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current … . We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will sweep the conductor. a current can be induced by changing the area of a coil in a constant magnetic field. By Faraday's Law: the induced current is proportional to the rate of the change of flux i … n a loop of wire. With magnetic flux being defined as the product of the magnitude of the magnetic field and the area of the loop. Strictly speaking,  you will only get an induced current in the wire if it is part of a  complete circuit. A wire which is unconnected at both ends will  have a difference in voltage between the ends (a potential  difference) but current can only flow when the wire is in a  circuit. Electromagnetic induction is the production of an electromotive force across a conductor exposed to time varying magnetic fields. Michael Faraday, who mathematically described Faraday's law of induction, is generally credited with its discovery in 1831. When the coils are stationary, no current is induced. But when the small coil is moved in or out of the large coil (B) , the magnetic flux through the large coil changes, inducing a current which is detected by the galvanometer (G) . The electricity that we use today was the invention of a genius who was forgotten in the tides of time. He is Nikola Tesla, the man responsible for our present world. He invented alternating current(AC) which replaced Edison's Direct Current(DC). He was a genius-- a man who walked and thought decades ahead of his time. It had been evolved by many Europeans and in 1852 the first 'modern' light bulb was invented. Edison bought his patent in the 1870s from other inventors and experimented with different filaments. Quite ironic as this pages is about the misconception of who first harnessed electricity. Current is not induced into a coil. It's voltage that is induced into a coil. If the coil is connected to a load, or even short circuited, then a current will flow as a result … of the induced voltage-but it's the voltage, not the resulting current, that's induced! Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current … . We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will sweep the conductor.
https://en.wikipedia.org/wiki/Induction_coil https://en.wikipedia.org/wiki/Electromagnetic_induction http://www.thehistoricalarchive.com/happenings/57/the-history-of-electricity-a-timeline/ http://www.universetoday.com/82402/who-discovered-electricity/ http://www.wisegeek.org/who-discovered-electricity.htm http://www.answers.com/Q/Who_discovered_induced_currents http://www.answers.com/Q/Who_invented_induced_currents https://en.wikipedia.org/wiki/Electromagnetic_induction http://www.wisegeek.org/who-discovered-electricity.htm http://www.answers.com/Q/Who_discovered_induced_currents
who invented induced currents