184_notes:induced_current

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Last revisionBoth sides next revision
184_notes:induced_current [2021/11/12 23:13] – [Step 4.) $\Phi_{B,i}$, $\Phi_{B,f}$ and $\frac{d\Phi_{B}}{dt}$] stumptyl184_notes:induced_current [2021/11/12 23:15] – [Finding the Induced Current Direction] stumptyl
Line 11: Line 11:
  
 {{youtube>Qlg0Iu1Do94?large}} {{youtube>Qlg0Iu1Do94?large}}
 +\\ 
 +**NOTE: In this chart there is a mistake in the chart being used: The variables "V" and "I" are not vectors. Please make a note of this when watching the video to ensure there is no confusion.**
 ==== Right Hand Rule Steps ==== ==== Right Hand Rule Steps ====
  
Line 61: Line 62:
 For our example, the change in flux was negative. So we write down "positive" for the $V_{ind}$ column. For our example, the change in flux was negative. So we write down "positive" for the $V_{ind}$ column.
  
-[{{184_notes:ic_vinduced.png+[{{184_notes:inductionchart_parte.png
 ?440|Step 5: The sign of the V-induced is the **opposite** of the change in flux.  }}] ?440|Step 5: The sign of the V-induced is the **opposite** of the change in flux.  }}]
  
Line 71: Line 72:
 For our example, we found that $V_{ind}$ was positive. So this means that we would stick our thumb in the -x direction (pointing to the left) and then curl our fingers around in a circle. You should find the the current would go into the page at the top of the coil and would come back out of the page at the bottom of the coil. Just because it's often hard to draw the current direction in 3D, we often will just notate where on the coil the current is into/out of the page. For our example, we found that $V_{ind}$ was positive. So this means that we would stick our thumb in the -x direction (pointing to the left) and then curl our fingers around in a circle. You should find the the current would go into the page at the top of the coil and would come back out of the page at the bottom of the coil. Just because it's often hard to draw the current direction in 3D, we often will just notate where on the coil the current is into/out of the page.
  
-[{{184_notes:inductionrhr.png+[{{184_notes:inductionchart_partf.png
 ?440|Step 6: Find the direction of the induced current based on the right hand rule. }}] ?440|Step 6: Find the direction of the induced current based on the right hand rule. }}]
  
 The right hand rule for determining the induced current direction is definitely more complicated than our previous right hand rules; however, this table helps break the process down into manageable chunks. We definitely recommend writing out each step in this way - otherwise it is easy to miss a step or a negative sign, which will throw off your final result. The right hand rule for determining the induced current direction is definitely more complicated than our previous right hand rules; however, this table helps break the process down into manageable chunks. We definitely recommend writing out each step in this way - otherwise it is easy to miss a step or a negative sign, which will throw off your final result.
  • 184_notes/induced_current.txt
  • Last modified: 2021/11/12 23:15
  • by stumptyl