GRADE: 8th TEACHER: Mrs. Russo I. Statement of Purpose and Hypothesis: Our purpose for this project was to find out what fruits and vegetables could generate an electric charge. We also wanted to find out which ones had the greatest and least charge. Our hypothesis stated that the potato would have the greatest charge
Premium Electric current Electric charge Electricity
History of Electrotherapy Electrotherapy was developed by a man called Guillaume Duchenne. Duchenne publicly announced in 1855 that when electricity flowed into a muscular area of the human body‚ there was a reaction. The reaction that was produced by the contact flow of electricity was that the muscle began to contract as soon as the electricity made direct contact with the desired muscles. He also realised that the type of electrical current aided the success of electrotherapy‚ as the wrong
Premium Skin Electricity Alternating current
Ladders are some of the most important tools you can use on a job site. There are different types of ladders to be used in different situations. The types of ladders available are Wooden‚ Aluminum‚ and fiberglass. Wooden ladders are heavy and hard to keep clean. Wooden ladders are sturdier than fiberglass or aluminum ladders and can be used when heavy loads must be moved up or down the ladder. Aluminum ladders are corrosion-resistant and can be used where ladders might be exposed to weather. They
Premium Rule of thumb Maxima and minima Length
An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
Premium Electric charge Electricity Electron
Over history‚ billions of persons have existed around the globe. However‚ out of the numerous people‚ only handfuls have undertaken procedures and innovations that draw universal acknowledgment and admiration. In such a way‚ through innovation and development of ideas‚ such characters have drastically changed the world. Born on July 10‚ 1856‚ Nikola Tesla forms part of such individuals who have influenced the globe in a particular way. Tesla was a brilliant Serbian inventor who made significant inventions
Premium Nikola Tesla Thomas Edison Electricity
Scientist Nikola Tesla was an influential historical figure whose findings and inventions helped shape the modern world of electricity. The 18th-19th century scientist quickly became known as the “Mad Scientist”‚ and later as the “Genius Who Lit the World”. Nikola Tesla is responsible for over 300 inventions and 700 patents worldwide. He was not properly credited or widely accepted as a great inventor until after his death. However‚ that did not stop the great man from furthering his studies and
Premium Thomas Edison Nikola Tesla Electricity
References: [1] J. C. Maxwell. A Treatise on Electricity and Magnetism. Dover‚ 3rd edition‚ 1954. First published: Clarendon press‚ 1891. A Formulæ E = mc2 2
Premium Electromagnetism Electricity Electric current
Tesla’s rotating magnetic field was once described as “ a thing that may be described‚ but not understood” Nikola Tesla was a brilliant scientist who had many great inventions that still have an effect on us today. His inventions such as the Tesla coil and AC electrical system make today’s mechanical inventions function as well as they do. Tesla achieved his goals by believing in himself and his inventions‚ despite what anyone said. Tesla would have hundreds of trial and error before he would even
Premium Nikola Tesla Electricity Thomas Edison
Grade 10 Electricity I Q t I = current Q = net charge flowing t = time 1A 1C 1s Unit: Q = Coulomb (C) I = Ampere (A) t = Second (s) Potential difference Work done to move a unit charge from one point to another V W Q Unit Volt 1 Volt 1 joule 1 coulomb 1V 1J C 1 Ohm’s law Current potential difference V I V = IR (R = resistance) Unit (R) 1 1V 1A (Ohm) Factors on which resistance depends 1. 2. R R l‚ when A and material constant l = length A‚ when l and material constant
Premium Electric charge Electric current Electricity
below (i) Electric iron: In an iron the upper part is grooved. In this groove a coil is placed. Mica as an insulator is placed between the metal part and the coil‚ so that there is no electrical connection between them. Mica is a bad conductor of electricity but it is a good conductor of heat. Due to the flow of current through the coil it becomes heated and the heat transferred to the metal part through mica. Finally the metal part becomes heated. Iron is used with the heating effect of an electric
Premium Electricity Electric charge Electric current