184_projects:power_lines_2

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184_projects:power_lines_2 [2022/12/05 14:35] – valen176184_projects:power_lines_2 [2023/04/17 13:19] – dmcpadden
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 <WRAP info> <WRAP info>
 ===Learning Goals=== ===Learning Goals===
-  * Use Ampere's Law to calculate the magnetic field outside of a current-carrying wire. +  * Use Right Hand Rule to determine the direction of magnetic field. 
-  * Explain why you pick your Amperian loop and how it helps you simplify your calculations. +  * Use Right Hand Rule to determine the direction of magnetic force. 
-  * Explain the general steps that you take when using Ampere's Law.+  * Understand how the integral version of the magnetic field equation relates to the long wire equation.
   * Calculate the force from one wire on another.   * Calculate the force from one wire on another.
 </WRAP> </WRAP>
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 Conceptual questions: Conceptual questions:
   - In your calculations, you used dl or L a couple of times. What equations did you use with lengths, and which lengths were they referring to?   - In your calculations, you used dl or L a couple of times. What equations did you use with lengths, and which lengths were they referring to?
-  - What steps did you need to take to simplify the $\int \vec{B} \bullet d\vec{l} $? +  - If the wire has $0.008 \Omega/m$ resistance, how big of a power supply would be required for your current? (Calculate this!) 
-  - How did you pick your Amperian loop? Would a square Amperian have worked for the power line? Would a circle that is off center work? +  - What would change about your solution if the currents went in the same direction instead of opposite directions?
-  - How would you calculate the magnetic field inside the wire? What would change about your calculation?+
   - What assumptions did you make in this problem? What are the limitations of your solution?   - What assumptions did you make in this problem? What are the limitations of your solution?
-  - When do you want to use Ampere's Law and when would you want to use the Biot-Savart Law to find magnetic field?+  - When do you want to use the integral form of the B-field equation? When can you use the long wire equation? 
 +  - How does this relate to real power lines? Do we actually use 1000 A of current in real power lines? (You may have to do some googling here.)
  
  • 184_projects/power_lines_2.txt
  • Last modified: 2023/11/17 13:56
  • by dmcpadden