184_projects:detecting_b_fields

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184_projects:detecting_b_fields [2022/01/04 15:57] – created dmcpadden184_projects:detecting_b_fields [2023/10/24 16:42] (current) – dmcpadden
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-==== Project 9A: Detecting magnetic fields ====+==== Project: Detecting magnetic fields ====
  
 {{183_projects:magnetic.jpg?600}} {{183_projects:magnetic.jpg?600}}
  
-An experimental magnetic field detector has been constructed outside of the town of Lakeview. Although the purpose of the detector is largely unknown to the townsfolk of Lakeview you and your team have been recruited to develop a magnetic field detector that is able to detect Hawkions. Hawkions are like muons, but are slow-moving and have long lifetimes. They are a newly discovered top secret particles that the data from the probe from Artemis 13 discovered is bombarding the Lakeview area. You have a somewhat constructed model, in which the Hawkions follow a straight line trajectory, but it looks like there are some pieces of code that the team wasn't sure what to do with. You will need to select a few locations to model the magnetic field due to the Hawkions and produce arrows that represent the Hawkion's magnetic field. Best hurry, the government needs more information about the Hawkions particle before it is too late.+An experimental magnetic field detector has been constructed outside of the town of Lakeview, due to the presence of a new mysterious particle. You and your team have been contacted to determine the charge of this new particle and construct a model of what the magnetic field should look like. Thankfully, you've gotten some initial data from your colleagues. They were able to measure two different magnetic fields for a particle that was moving with velocity of $\vec{v} = <0, -20, 0> m/s$. The first field was measured 1 m to the right and 1 m up from the charge particle and found to be $\vec{B}_1 = <0, 0, +7.07E-5> T$. The second field was measured 4m beneath the particle, and interestingly was found to be $\vec{B}_2 = <0,0,0>T$.  
 + 
 +Your colleagues have also worked on a somewhat constructed model of the field, but it looks like there are some pieces of code that the team wasn't sure what to do with. You will need to select a few locations to model the magnetic field due to the new particles and produce arrows that represent the magnetic field as the particle moves by. This will provide much needed information about these new particles!
  
 <code python> <code python>
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 ## Parameters and Initial Conditions ## Parameters and Initial Conditions
-velocity = vector(1,0,0)+velocity = vector(0,-20,0) 
 +#q =  ??? Don't know this?? 
 +  
 +## Observation Points - Need at least 3???
    
 ## Objects ## Objects
-charge = sphere(pos=vector(-2,0,0), radius=0.1, color=color.blue)+charge = sphere(pos=vector(0,2,0), radius=0.1, color=color.blue)
 xaxis = cylinder(pos=vector(-3,0,0), axis=vector(6,0,0), radius = 0.01, color=color.black) xaxis = cylinder(pos=vector(-3,0,0), axis=vector(6,0,0), radius = 0.01, color=color.black)
 yaxis = cylinder(pos=vector(0,-3,0), axis=vector(0,6,0), radius = 0.01, color=color.black) yaxis = cylinder(pos=vector(0,-3,0), axis=vector(0,6,0), radius = 0.01, color=color.black)
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 t = 0 t = 0
-dt = 0.01+dt = 0.001
    
-while t < 5:+while t < 2:
    
     rate(100)     rate(100)
    
     charge.pos = charge.pos + velocity*dt     charge.pos = charge.pos + velocity*dt
-    + 
     t = t + dt     t = t + dt
          
          
 +    if charge.pos.y < -3:
 + 
 +            velocity = vector(0,0,0)
 + 
 + 
 ## Not sure what to do with these ## Not sure what to do with these
 + 
 ##p = sphere(pos=vector(-1,-1,0), radius = 0.1, color=color.cyan)  ##p = sphere(pos=vector(-1,-1,0), radius = 0.1, color=color.cyan) 
 ##Barrow = arrow(color=color.red) ##Barrow = arrow(color=color.red)
 ##Barrow.pos = p.pos ##Barrow.pos = p.pos
-##Barrow.axis = vector(0,0,0) +##Barrow.axis = vector(0,0,0)
 </code> </code>
  
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 Conceptual Questions: Conceptual Questions:
-  - What shape is the magnetic field around the moving point charge? (Hint: make multiple observation points and move them around) +  - Why is $B_2$ equal to zero? 
-  - How is magnetic field different than electric field? +  - How is magnetic field different than electric field? What is similar?
-  - How would you calculate the magnetic field? (Pick an observation point and do a sample calculation)+
   - What is a cross product? What role does it serve in the magnetic field equation?    - What is a cross product? What role does it serve in the magnetic field equation? 
 +  - How does the right hand rule work for calculating the magnetic field?
   - What is a "normal" size for magnetic fields? (Look up how big is Earth's magnetic field, fridge magnet, etc.)   - What is a "normal" size for magnetic fields? (Look up how big is Earth's magnetic field, fridge magnet, etc.)
 +  - What shape is the magnetic field around the moving point charge? (Hint: make multiple observation points and move them around)
   - What assumptions did you make for the problem? How would you evaluate your answer?   - What assumptions did you make for the problem? How would you evaluate your answer?
 +
  
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