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--- 184_projects:multiple_induction [2022/11/04 18:44] – valen176
+++ 184_projects:multiple_induction [2022/11/30 14:30] (current) – dmcpadden
@@ Line 1: / Line 1: @@
 ==== Project: Manny's Recycling ====
-Manny Hallabero is at it again! While it appears he took a couple weeks off, he is back to peppering the Lakeview City Council with questions about the new magnetic field surrounding Lakeview. You see, Manny is a dedicated recycling enthusiast and has been collecting discarded wire coils from the Hawkion Detector. Manny was planning a large transport of the coils, along with some spare magnets and power supplies, but he is now concerned. He has constructed a variety of scenarios (though some seem a bit outlandish) and asked the Lakeview City Council for answers. Given your expertise, the Lakeview City Council has asked you to analyze each situation to determine: 1) is there an induced current in the given wire coil and 2) if so, what direction is the induced current?
+As the last of the reconstructed powerlines get put into place, the citizens of Lakeview have discovered that a strong magnetic field will temporarily stun the EM boar-tigers, allowing one to easily get to safety. Pooling together every last tax dollar, the citizens of Lakeview have decided they should create a constant 5 mT magnetic field everywhere in town to ensure the safety of their citizens.
+However, the superstitious local named Manny Hallabero is peppering the Lakeview City Council with questions about the new magnetic field surrounding Lakeview. You see, Manny is a dedicated recycling enthusiast and has been collecting discarded wire coils from the Hawkion Detector. Manny was planning a large transport of the coils, along with some spare magnets and power supplies, but he is now concerned. He has constructed a variety of scenarios (though some seem a bit outlandish) and asked the Lakeview City Council for answers. Given your expertise, the Lakeview City Council has asked you to analyze each situation to determine: 1) is there an induced current in the given wire coil and 2) if so, what direction is the induced current?
 === Bar Magnet Situations ===
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   * Identify steps needed to determine an induced current direction
   * Explain the difference between conventional current and induced current
-=== Learning Issues ===
-=== Timing ===
-</WRAP>
-==== Project: Solution ====
-Bar Magnet Situations
-The first step for solving these problems is to set up a table that looks one of the tables from the[[184_notes:induced_current|Finding the Induced Current Direction]] notes:
-{{ 184_solutions:mr_soln0.png?600 }}
-The next step is to start filling in the table, either row-by-row or column-by-column. Choosing to always have  $d\vec{A}$'s point in the same direction as $\vec{B}$ (when possible), results in this table:
-{{ 184_solutions:mr_soln3.png?900 }}
-Pointing all of the $d\vec{A}$'s in the opposite direction yields this table:
-{{ 184_solutions:mr_soln2.png?500 }}
-Note: The magnetic field from the bar magnet points from the south end of the bar magnet to the north end.
-Coil Situations
- more words
-{{ 184_solutions:mr_soln3.png?900 }}
-{{ 184_solutions:mr_soln4.png?500 }}
-<WRAP tip>
-=== Discussion Prompts ===
-  * **Question**:
-=== Evaluation Questions ===
-  * **Question**:
-=== Extension Questions ===
 </WRAP>
+Conceptual Questions:
+  - What assumptions are you making in these RHR problems? (Hint: particularly, what assumptions are you making about the B-field?)
+  - What direction does the dA vector point?
+  - What would change about your answer if you picked the opposite dA vector? Select one of the scenarios above and fill out the table for both dA vectors - what changes and what stays the same?
+  - How do you simplify the flux integral? (Hint: there are two key simplifying steps to simplify the integral!)
+  - Is flux a vector or a scalar? How do you know?
+  - What makes flux positive or negative? When will flux be zero?
+  - Out of all of your scenarios - what causes there to be no induced current? What patterns do you see across all the scenarios?