Two experiments in the motor, magnetic power of Faraday in the year. 1821 the principle behind the mechanical strength of the motor's produce is the interaction of electric current and magnetic field existing in the motor. The rules of the ampere, was discovered by ong de-Marie ongpae (André-Marie Ampère) in the years 1820 to change mechanical energy into electrical energy by means of electromagnetic way has been demonstrated by Michael Faraday in 1821 British scientists wire hang free of mercury has been dipped in that there can.Ramae (PM) of iron were placed when electricity is passed to the wire, the wire is rotating around. Magnet shows how electricity produces a magnetic field around the wire circle closed. This motor is often shown demonstrate in experimental physics, using water, salt substitutes, mercury is a poison. Although wheel-bar (Barlow's wheel) is adjusted during the era of the show's main demonstration of Faraday, motor the same polarity (homopolar motor) similar to these, and will continue to apply in practice, have until the end of the 19th century, in the year 1827 physics student nationals of Hungary. Ana Jonathan Davis (Ányos Jedlik) dali ye began to experiment with the electromagnetic coil (electromagnetic coil).
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