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HISTORY OF THE ELECTROMAGNETIC INDUCTION

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priyanka thakore

on 14 December 2013

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Transcript of HISTORY OF THE ELECTROMAGNETIC INDUCTION

HISTORY OF THE ELECTROMAGNETIC INDUCTION

What is Electromagnetic Induction?
A magnetic field is created by charges moving in an electric field.Electromagnetic Induction proves that magnetism does in fact produce electricity.
Michael Faraday
Michael Faraday was a British Scientist, well known for his contributions towards electromagnetism and chemistry. He was born into a poor family on September 22, 1791 in London. At the young age of 14, he self educated himself through books from working as a book keeper's apprentice. Soon after, he managed to secure a job as an assistant to a Chemist and became a well known research scientist. He attended a European tour and assisted in experiments which lead to his curiosity for magnetism. Along with demonstrating that magnetism can produce electricity he also discovered electromagnetic rotations, diamagnetism and electrolysis. It is because of Faraday's research that electricity is used in technology. Besides his discoveries he made many more achievements in his life including an honorary degree for Doctor of Civil Law and he was also a lecturer. Faraday passed away at the age of 75 in August of 1867 due to poor health.
Michael Faraday
Faraday's Law
Faraday's law of electromagnetic induction states that a changing magnetic field in the region of a closed-loop conductor, results to an electrical current.
Who discovered Electromagnetic Induction?
Michael Faraday is the most credited scientist among those that discovered and researched electromagnetic induction, because he was able to demonstrate the electricity being produced by magnetism. Although Faraday is credited, it may have been with the help of Francesco Zantedeschi's research. Also, Franz Ernst Neumann from Italy and Joseph Henry from the USA had been diverting their interest towards the topic but did not publish their discoveries.
Lenz's Law
Len's law states that an induced current and emf are in such a
direction
as to oppose the change that produced them. Basicaly, Lenz's law takes Faraday's law a step further and explains that there is a direction in which the current flows
When was Electromagnetic Induction Discovered?
Electromagnetic induction was discovered around the year 1831, and published officially on August 29 of the year 1831 by Michael Faraday. Although it was published and proven with an experiment, it was not accepted by scientists because it lacked mathematical formulation. The reason for this may have been because Faraday's mathamatical abilities didn't go past his knowledge for algebra, so he was not quite able to explain his discovery using mathematical terms. This later changed with the help of James Clerk Maxwell that put the information into a formula.
Maxwell - Faraday Equation
How was Electromagnetic Induction discovered?
Faraday used his knowledge of force he had gained through books and experiments and assumed that if a current flowed in one wire, a wave would travel through the ring causing an electrical effect on the opposite side also. He noticed this happened when the wire was connected and disconnected from the battery, and a " wave of electricity " as he called it, took place. In the course of 2 months, Faraday discovered other manifestations of electromagnetic induction.
Faraday and Henry's experiment
What is the importance of Electromagnetic Induction?
It it because of the discovery of electromagnetic induction that we are able to enjoy the electronic devices we use today on a regular basis. These devices were invented by scientists who utilized Faraday's information that stated if a wire moved through a magnetic field it produced electricity. The devices they invented generate electricity.
THIS ISU IS APPROVED BY MICHAEL FARADAY
By: Priyanka Thakore
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