PROJECT Faraday's law of induction. Qianmeng Gu (qxg5019 ) Linnan Zhang(lqz5068) Ying Ye(yoy5069). Today:. We all know today is an age of electricity. We enjoy the benefit the electricity provides us everywhere. Past:.
PROJECTFaraday's law of induction
Then who solved this problem?
The predominant theory before Law of induction
In 1820, Danish physicist and chemist, Hans Christian Ørsted discovered the phenomenon of electromagnetism.
In 1821 Faraday, Davy and William built homopolar motor-which made continuous circular motion from the circular magnetic force around a wire and a wire extending into a pool of mercury with a magnet placed inside that would rotate around the magnet if supplied with current from a chemical battery. This is foundation of modern electromagnetic technology
Faraday was an English chemist and physicist (or natural philosopher, in the terminology of the time) who contributed to the fields of electromagnetism and electrochemistry.
Faraday is best known for his work regarding electricity and magnetism. His first recorded experiment was the construction of a voltaic pile with seven halfpence pieces, stacked together with seven disks of sheet zinc, and six pieces of paper moistened with salt water. With this pile he decomposed sulphate of magnesia (first letter to Abbott, 12 July 1812).
For the relationship between a time-varying magnetic field and an induced electric field
In physics, a quantitative relationship between a changing magnetic field and the electric field created by the change, developed on the basis of experimental observations made in 1831 by the English scientist Michael Faraday.(Shown by the right side picture)
Faraday discovered that, whenever the magnetic field about an electromagnet was made to grow and collapse by closing and opening the electric circuit of which it was a part, an electric current could be detected in a separate conductor nearby. Moving a permanent magnet into and out of a coil of wire also induced a current in the wire while the magnet was in motion. Moving a conductor near a stationary permanent magnet caused a current to flow in the wire, too, as long as it was moving.
The fundamental principles of electricity generation is still used today!
Thank you for your attention