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Notable Contributions to the Study of Electricity

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Gian Benedict Ih

on 8 September 2013

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Transcript of Notable Contributions to the Study of Electricity

Notable Contributions to the Study of Electricity
Electric Charge
Charge - is the fundamental quantity of all electrical phenomena and the smallest unit of electricity at rest.
Detail 1
Electrostatic - is the phenomenon that deals with interaction between electric charges that are at rest.
Detail 2
Proton - is a positively charge particle.
Electric Charge Transfer(Charging)
Detail 4
Charles Augustine de Coulomb(1736-1806) a French scientist, discovered an important realationship about electrical forces. He discovered that the electrical force obeys the "inverse square law" which states that the smaller the distance of separation, the greater the electrical force that is exhibited and vice versa.
Benjamin Franklin(1706-1790), an American scientist, contributed discoveries and theories on electricity. His famous kite experiment showed lightning as an electrical phenomenon. He was the first to label positive and negative charges. He also invented lightning rods to protect building, houses and ships from being damaged.
History
In 1600, William Gilbert(1544-1603), an English scientist and physician, published a book on the property of electrical effect. The book "De Magnete or On the Magnet" contained his study and experiments on magnetic materials. After him many scientist started to investigate the different properties of electricity. For his work, he was named the "father of electricity"
Alessandro Volta(1745-1872), an Italian physicist, was known for his invention if photovoltaic cells that produce electrical potentials or voltage. He discovered that two unlike metals in contact can produce small electrical effects. His observations led to the construction of electric battery or "pile" which beacame a significant source of electrical current.
Georg Simon Ohm(1789-1854), a German physicist, was recognized for his discovery of the relationship among current, voltage and resistance. His discovery was first published in the book "Die galvanische Kette, Mathematisch bearbeitet(The Galvanic Circuit Investigated Mathemically).Ohm theorized that the potential difference across the conductor is is proportional to the current passing through it. This implies that greater voltage produces stronger current at a given resistance.
Gregorio Zara(1902-1978), a Filipino physicist, discovered the law of electrical kinetic resistance known as the Zarra effect. This law states that all moving charges between conductors produce a resistance to the passag of electrical current which may be kinetic/ or permanental resistance. Only happens at low amperage.
Neutron - is an uncharged particle.
Electron - is a positively charged particle.
Charging by fiction happens when two materials are rubbed together.
Charging by conduction Charging by conduction involves the contact of a charged object to a neutral object
Charging by induction is a method used to charge an object without actually touching the object to any other charged object
Full transcript