Exam One Study Guide
Exam One Study Guide ENG 120 001
Popular in Honors Engineering Problem Solving I
Popular in General Engineering
This 2 page Study Guide was uploaded by Destiny Hicks on Friday October 9, 2015. The Study Guide belongs to ENG 120 001 at Louisiana Tech University taught by Mike Swanbom in Summer 2015. Since its upload, it has received 19 views. For similar materials see Honors Engineering Problem Solving I in General Engineering at Louisiana Tech University.
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Date Created: 10/09/15
Engineering 120 Exam One Study Guide Below is a brief summary of note sets 1 and 2 Electricity is the ow of electric charge For us this amount to the movement of electrons or protons A proton is positively charged and is composed of two up quarks and a down quark An electron is negatively charged and it is believed to be a fundamental particle There are three types of materials that electricity can possibly move through A conductor is one in which electricity can easily ow through A semiconductor is one in which electricity can ow through under certain conditions An insulator is a poor conductor thus electricity cannot ow it Electric Current The net ow of electrons through a material is called a current When the ow is from positive to negative it is known as a conventional current The conventional current is known as I when we measure or computer currents Due to atom oscillations the path an electron may take is very scattered Eectrica resistance is therefore the measure of the opposition of materials to the passage of electric current Resistance is annotated as R The potential difference between the strength of the electron shortage and the electron supply de nes the voltage Voltage is a measure of how badly electrons want to cover a distance It is electrical pressure energy that will be spent Voltage is measured as EMF electromotive force EhE Q El ijr ElEEEEF HE passing 4 punt 1 Euul mb If 1 Hinp quot 52mm amend a i 7 A E E where 1E E 621 33 male39c39tmns Overall Electricity Overview Power V Jc V I in terms of units A cs V A is Jc cs gt 05 gt Watt QVA PV2R VR or RV orVR P2R On the exam make sure you study the powerpoints in class that cover resistance and voltage and do the practice exams on the Living with the Lab ENGR 120 website
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