184_projects:lightbulbs_r_us

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184_projects:lightbulbs_r_us [2022/01/04 15:50] – created dmcpadden184_projects:lightbulbs_r_us [2023/10/03 19:37] (current) tdeyoung
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-==== Project 5A: Lightbulbs'R'Us and JPL ====+==== Project 6A: Lightbulbs'R'Us and JPL ====
 {{  184_notes:wires.png?200}} {{  184_notes:wires.png?200}}
  
-Continuing T.R.O.J.A.N forces collaboration with the Jet Propulsion Laboratory (JPL) Division of NASA, you and your team are working with a group of electrical engineers at Lightbulbs'R'Us. Given the problems that Lieutenant Pete "Maverick" Mitchell has been having with the warning lights, the Jet Propulsion Laboratory (JPL) Division of NASA has placed a large order for a new set of warning lights for their power delivery system. They have told you that a current of 2.5 A down the carrier wire should turn on the warning light. Unfortunately, due to JPL's time schedule, you do not have time to order LED bulbs and must construct the lightbulbs the [[184_projects:f20_project_5_filament|old fashion way using a filament]] (very thin piece of wire, diameter = 0.1 mm) connected to the carrier wire (normal electrical wire, diameter = 1.63 mm). You happen to have the following [[184_notes:metals|metals in the warehouse]], with known electron densities and electron mobilities. +Continuing T.R.O.J.A.N forces collaboration with the Jet Propulsion Laboratory (JPL) Division of NASA, you and your team are working with a group of electrical engineers at Lightbulbs'R'Us. Given the problems that Lieutenant Pete "Maverick" Mitchell has been having with the warning lights, the Jet Propulsion Laboratory (JPL) Division of NASA has placed a large order for a new set of warning lights for their power delivery system. They have told you that a current of 2.5 A down the carrier wire should turn on the warning light. Unfortunately, due to JPL's time schedule, you do not have time to order LED bulbs and must construct the lightbulbs the old fashion way using a filament (very thin piece of wire, diameter = 0.1 mm) connected to the carrier wire (normal electrical wire, diameter = 1.63 mm). You happen to have the following [[184_notes:metals|metals in the warehouse]], with known electron densities and electron mobilities. 
  
 JPL has asked for a product report on your design. They would like you to outline which metals you would want to use for carrier and filament, why you picked those metals, and the expected surface charge distribution for your set up. They would also like to know the total resistance of your design and the total voltage needed to power your bulb (so they know what kind of battery to provide).  JPL has asked for a product report on your design. They would like you to outline which metals you would want to use for carrier and filament, why you picked those metals, and the expected surface charge distribution for your set up. They would also like to know the total resistance of your design and the total voltage needed to power your bulb (so they know what kind of battery to provide). 
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   - What other factors might influence the choice of metal? How realistic is your solution?   - What other factors might influence the choice of metal? How realistic is your solution?
  
 +/*
 +Group Project Prep:
 +  - Discuss with your group how you actually want to complete the project. (Google doc? Physical whiteboards? Jamboards? On paper?)
 +  - Review the Group Project rubric together as a group (in Group Project 1 folder on D2L). This is what we'll be using to grade your write ups.
 +  - Review the learning goals & conceptual questions on the in class problems from Weeks 1 - 4. Make sure you know how to address those!
 +  - Review the in class problems from Weeks 1 - 4. Were there any you feel shaky on? Did you not get to a certain part on any? (e.g. did you not really talk about assumptions on Project 2A?) Flesh out your solutions and add any missing parts/detail.
 +*/
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  • Last modified: 2022/01/04 15:50
  • by dmcpadden