184_projects:magnets_n_junk_24

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184_projects:magnets_n_junk_24 [2024/02/03 22:37] – tdeyoung184_projects:magnets_n_junk_24 [2024/03/22 17:09] (current) – dmcpadden
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-==== Project: Magnets 'n' Junk ====+===== Project: Magnets 'n' Junk ===== 
 + 
 +==== Kick Off Questions ==== 
 +  - What is the dl vector and how is it different from the r_sep vector? 
 +  - Suppose you have a current loop with the current moving in a counterclockwise circle. Using the right hand rule, what would be the direction of the magnetic field in the center of the circle? (Hint: pick 4 "little chunks" of the circle and use the right hand rule for each of those chunks to figure out the pattern.) 
 +  - What are the general steps you need to take to set up a B-field integral? 
 + 
 + 
 +==== Main Problem ====
 Task force S.P.A.R.T.A.N has been given some much-needed downtime. Your team goes for a walk around town in order to get to know some members of the community and find the best coffee in town. As you are strolling around town, you hear a holler. "Aya!!! Hey, howdy!! Come check out this ol' piece of junk I got right here, y'all!" It's Dr. Daryn McPaddel, the town inventor/engineer who is always showing her neighbors strange contraptions that she has made.  She happens to live adjacent to Lakeview's scrapyard, which allows her to tinker and invent to her heart's delight. This is what you see: Task force S.P.A.R.T.A.N has been given some much-needed downtime. Your team goes for a walk around town in order to get to know some members of the community and find the best coffee in town. As you are strolling around town, you hear a holler. "Aya!!! Hey, howdy!! Come check out this ol' piece of junk I got right here, y'all!" It's Dr. Daryn McPaddel, the town inventor/engineer who is always showing her neighbors strange contraptions that she has made.  She happens to live adjacent to Lakeview's scrapyard, which allows her to tinker and invent to her heart's delight. This is what you see:
  
 {{youtube>lSmuqLtmuwg?large}} {{youtube>lSmuqLtmuwg?large}}
  
-As you observe Dr. McPaddel's magnetic crane-thing at work you notice that there are a bunch of kids on a field trip in the scrapyard. This seems like an odd place for a field trip, but then again nobody can really leave the town so there might not be a load of options. The teacher with the field trip, identifying you from all your work around town, approaches you and says: "Hey, you know about electricity and magnets and whatnot, can you explain to the kids how this works?" You agree to explain in detail what's going on, since you are concerned what crazy old Dr. Daryn McPaddel will say. +As you observe Dr. McPaddel's magnetic crane-thing at work you notice that there are a bunch of kids on a field trip in the scrapyard. This seems like an odd place for a field trip, but then again nobody can really leave the town so there might not be a load of options. The teacher with the field trip, identifying you from all your work around town, approaches you and says: "Hey, you know about electricity and magnets and whatnot, can you explain to the kids how this works?" You agree to explain in detail what's going on, since you are concerned what crazy old Dr. McPaddel will say. 
  
 The best way would probably be with a visual representation, and Dr. McPaddel has already created a visual of the coil of wire inside the contraption. All that's left to do is show what the magnetic field looks like. The best way would probably be with a visual representation, and Dr. McPaddel has already created a visual of the coil of wire inside the contraption. All that's left to do is show what the magnetic field looks like.
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 </WRAP> </WRAP>
  
-Conceptual questions: +==== Wrap Up Questions ====
-  - What is the dl vector and how is it different from the r_sep vector? +
-  - How can you use right hand rule to determine the direction of the B-field from the current loop?+
   - Why is the magnetic field smaller on the outside of the ring compared to the inside?   - Why is the magnetic field smaller on the outside of the ring compared to the inside?
   - In the real world, why would we want to use a current ring instead of a permanent magnet if we need a B-field?   - In the real world, why would we want to use a current ring instead of a permanent magnet if we need a B-field?
   - The current in this problem is 5000 A. Is that big or small? Is it realistic? How would you create this kind of electromagnet in real life? (Like in the video)   - The current in this problem is 5000 A. Is that big or small? Is it realistic? How would you create this kind of electromagnet in real life? (Like in the video)
-  - Why would having a magnetic field from a ring of current attract the chunks of metal from the truck?+  - Why would having a magnetic field from a ring of current attract the chunks of metal from the truck? Why would the piece of metal then fall off the ring of current?
   - How does the set up from the code compare to the integral set up from Wednesday? Write out the steps that the code takes and compare those to your steps from Wednesday.   - How does the set up from the code compare to the integral set up from Wednesday? Write out the steps that the code takes and compare those to your steps from Wednesday.
  
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