Area of trapezoid formed by slicing a cylinder

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SUMMARY

The area of the trapezoid formed by slicing a cylinder of radius R with a plane inclined at an angle α is a complex geometric problem. The trapezoid's dimensions depend on the projection of the cylinder in both the x and y axes, leading to a need for integration to accurately calculate the area. The area of the base of the cylinder is given by Abase=π*R², while the length of the path of the magnetic flux is L. The discussion emphasizes that the resulting shape is not a true trapezoid but rather a truncated ellipse, complicating the area calculation.

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  • Knowledge of integration techniques, specifically Simpson's Rule
  • Familiarity with trigonometric functions and their applications in geometry
  • Concept of projections in three-dimensional geometry
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  • #31
magnetpedro said:
In my opinion it is not. It's a trapezoid because a flux would cross all the length of the cylinder.

Now your talking about the projection of a cylinder into a plane, I believe. The projection would have two parallel sides corresponding to the sides of the cylinder with elliptical end caps. (Whether a projection or a slice at some non-zero angle, you don't get a trapezoid.)

Does the flux pass through the entire cylinder?
 
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  • #32
stedwards said:
Now your talking about the projection of a cylinder into a plane, I believe. The projection would have two parallel sides corresponding to the sides of the cylinder with elliptical end caps. (Whether a projection or a slice at some non-zero angle, you don't get a trapezoid.)

Does the flux pass through the entire cylinder?

Yes, it does!
 
  • #33
Then, I guess you are asking about a projection, which is a long rectangle with the short ends replaced by half an ellipse. If you have a small light source across the room, it's the shadow cast by a soup can near the wall.
 

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