Week 2 Notes (Electricity)
Week 2 Notes (Electricity) ENG 120 001
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ENG 120 001
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This 3 page Class Notes was uploaded by Destiny Hicks on Saturday September 19, 2015. The Class Notes belongs to ENG 120 001 at Louisiana Tech University taught by Mike Swanbom in Summer 2015. Since its upload, it has received 15 views. For similar materials see Honors Engineering Problem Solving I in General Engineering at Louisiana Tech University.
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Date Created: 09/19/15
Engineering 120 Honors Electricity 2 Destiny Hicks Ohm39s Law aaauojiit eteetroaa bobbing a point 1 antomb i if 1 ramp 39 quot aerated aecoaal a A E I wb39re 1E E 1523 ll jl elaotrona Although the electrons have left the negative terminal they do not necessarily move to the positive terminal 1 fertile F a j footerab E 1 volt The more coulombs that pass the higher the pressure must have been Voltage is generally energycharge the coulomb flows through earth light bulb lo the bulb with two batteries the aeltage is doubled Doubling the voltage doubles the werlr The ligbtbolb with two batteries la also brighter I were we re roe tr 2 a 39 Pressure Voltage Current Current Resistance Resistance If a lake is twice as deep the energy will be higher as it ows through the same pipe a smaller lake would drain through Resistance is measured in ohms 0 Resistance impedes Resistance is a constant value whereas impedance is not so constant ll I 39l This is the symbol for a 15 Engineering 120 Honors Electricity 2 Destiny Hicks In this case the battery is 15V This would be an average voltage for most batteries This is the symbol for a 22 D It doesn39t matter which side is positive or negative 0 Straight lines represent conductors with an assumed resistance of zero Overall Electricity Overview VJc Acs QVA VR or RV or VR This is an electric Power V I in terms of units V A is Jc cs gt 05 gt Watt P v2R P IZR Remember resistors in series all currents are the same resistances add vs resistors in parallel voltages across each resistor are the same Engineering 120 Honors Electricity 2 Destiny Hicks VR1Z ReqR1R2m Req3QZQSQ1OQ 5V1OQ 05 A Req 11R1 1R2 1R3 1R4
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