Describe about Michale farady

1. Welcome To My Presentation
Presented To
Dr. Md. Rezwanul Ahasan
Assistant Professor
Department of EEE
Daffodil International University,
Bangladesh Presented By
Md. Jannatul Nayim Giyem
Course Title : Electrical Circuit II
Course Code : EEE 211
Department of EEE
Daffodil International University,
Bangladesh

2. Michael Faraday
Faraday, who became one of the greatest scientists of the
19th century, began his career as a chemist. He was a
British physicist and chemist whose many experiments
contributed greatly to the understanding
of electromagnetism.
Born on 22September, 1791 in Newington Butts,
England, UK
3rd
child of James and Margaret Faraday
His father was a blacksmith
Poor family and till 13 he received basic education
At 14 apprenticed to a local bookbinder and studied
himself for next 7 years
In 1813, “Humphry Davy” appointed him to the job of
chemical assistant at the Royal Institution.

3. 10 maj or cont ribut ions t o science
including his invent ions
 Invented the first electric motor.
 He discovered benzene.
 He was the first to liquefy chlorine and ammonia.
 Discovered the phenomenon of electromagnetic induction.
 His work laid the basis for future developments in the field of
electromagnetism.
 Invented the first electromagnetic generator.
 He formulated the Faraday’s laws of electrolysis.
 He discovered the principle of electrostatic shielding to invent
the Faraday Cage.
 He provided first experimental evidence that linked
electromagnetism and light.
 Faraday demonstrated Diamagnetism as a property of all

4. Michael Faraday invented the first electric motor
In 1820, Danish physicist and chemist Hans Christian Orsted discovered
that flow of electric current through a wire produced a magnetic field.
His discovery of electromagnetism initiated intensive research in the
field. Michael Faraday was the first to understand that this discovery
meant that if a magnetic pole could be isolated, it ought to move
constantly in a circle around a current-carrying wire. In 1822, Faraday
invented the first electric motor, a simple device that could convert
electrical energy into mechanical energy. Known as a homopolar motor,
his invention was useful only for demonstrative purposes. However, it
was the first step in the evolution of the immensely useful electric motor.

5. Michael Faraday invented the first
electromagnetic generator
Michael Faraday explained electromagnetism through a concept he
called lines of force. He discovered that the magnitude of current
produced by magnets was proportional to the number of lines of force
cut by the conductor in unit time. He invented a device which could
produce a steady (DC) current by rotating a copper disc between the
poles of a horseshoe magnet. The outside of the disk would cut more
lines than the inside, and thus there would be a continuous current
produced in the circuit linking the rim to the center. Known as
the Faraday disc, this was the first electromagnetic generator, a device
which converts mechanical energy to electrical energy. It was also the
starting point for modern dynamos, the first electrical generators capable
of delivering power for industry.

6. Faraday’s breakthroughs propelled our society to a new level of
knowledge
 We use motor in thousands of applications: disk drive, video machine, fan,
pump, washing machine, refrigerator, air conditioner…
 We need generator to produce electricity.
 We need transformer for long-range electricity delivery and in some
devices.
 Those inventions compose the frame of our electric world.
 Passengers would be trapped in the subway and elevator.
 Doctors would have troubles to operate surgeries.
 Airports would not be able to regulate the airlines.
 Our cities would fall into darkness at night.
 All the communications would be interrupted:
no radio, no TV, no telephone, and no Internet

7. Later life
 Was given many honors, including:
 An offer to become the president of the British Royal Society
 An award of knighthood
 However, a humble scientist as he was, he turned down those
offers
 The declining mental powers in 1855
 Ceased researching
 Continued as a lecturer for another six years
 Died on August 26, 1867 Hampton Court Palace, Molesey,
United Kingdom