How to Calculate Surface Integral Using Stokes' Theorem?

In summary, Stokes' theorem is a fundamental theorem in vector calculus that relates the surface integral of a vector field to the line integral of its curl over the boundary of the surface. It is used when evaluating integrals in three-dimensional space, particularly when the region of integration is a closed surface. Its significance lies in its ability to provide a powerful tool for calculating surface integrals, making it useful in many areas of physics and engineering. In order to apply it, the surface must be closed and have a smooth and simple boundary curve, and the vector field must be differentiable in the region of integration. Stokes' theorem can also be generalized to higher dimensions, relating the integral over an n-dimensional manifold to the (n-1)-dimensional
  • #1
WMDhamnekar
MHB
379
28
TL;DR Summary
Stokes’ theorem translates between the flux integral of surface S ##\displaystyle\iint\limits_{\Sigma} f \cdot d\sigma ## to ## \displaystyle\int\limits_C f\cdot dr## a line integral around the boundary of S. Therefore, the theorem allows us to compute surface integrals or line integrals that would ordinarily be quite difficult by translating the line integral into a surface integral or vice versa.
Calculating a surface integral
Calculate surface integral ## \displaystyle\iint\limits_S curl F \cdot dS ## where S is the surface, oriented outward in below given figure and F = [ z,2xy,x+y].

1669809506421.png


How can we answer this question?
 
Physics news on Phys.org
  • #2
You would do that as a line integral over [itex]C[/itex]; I assume the question tells you what [itex]C[/itex] is?
 
  • Like
Likes minimikanix

FAQ: How to Calculate Surface Integral Using Stokes' Theorem?

What is Stokes' theorem?

Stokes' theorem is a fundamental theorem in vector calculus that relates the surface integral of a vector field over a closed surface to the line integral of the same vector field along the boundary of the surface.

What is the significance of Stokes' theorem?

Stokes' theorem is significant because it allows for the calculation of a surface integral, which can be a difficult and time-consuming task, by converting it into a simpler line integral. This theorem is also used in many areas of physics and engineering, such as fluid mechanics and electromagnetism.

What are the conditions for applying Stokes' theorem?

In order to apply Stokes' theorem, the surface must be closed, meaning it has a boundary, and the vector field must be differentiable in the region enclosed by the surface.

How is Stokes' theorem related to Green's theorem?

Stokes' theorem is a generalization of Green's theorem, which relates a line integral around a simple closed curve to a double integral over the region enclosed by the curve. Stokes' theorem extends this concept to surfaces in three dimensions.

Can Stokes' theorem be applied to any surface and vector field?

Stokes' theorem can be applied to any smooth surface and any differentiable vector field in the region enclosed by the surface. However, for some surfaces and vector fields, the calculations may be more complex and difficult to solve.

Similar threads

I Any surface bounded by the same curve in Stokes' theorem
Replies
6
Views
1K
MHB Evaluate the surface integral $\iint\limits_{\sum}f\cdot d\sigma$
Replies
1
Views
2K
MHB Evaluating $\iint\limits_{\sum} f \cdot d\sigma $ on Cube S
Replies
3
Views
2K
I Stokes Theorem: Vector Integral Identity Proof
Replies
2
Views
2K
I Confirming my knowledge on surface integrals
Replies
2
Views
2K
MHB Calculate integral using Stokes Theorem
Replies
3
Views
2K
I Question regarding Stokes' Theorem
Replies
2
Views
1K
I Question about Integrals to Determine Volume vs Surface Area
Replies
5
Views
1K
Computing line integral using Stokes' theorem
Replies
8
Views
1K
I Is interchanging the order of the surface and volume integrals valid here?
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top