- #1

ermia

- 13

- 0

- Homework Statement
- There is a problem in krotov which I need help solving it.(3.4)

the solution of krotov is not obvious for me.

The problem's statement is uploaded as an image.

It says we want to find the electric feild of a part of a hemisphere with angle alpha at its center.

- Relevant Equations
- Maybe nothing but vector summation.

I tried gauss law.

And the fact that if alpha is less than pi/2 we can say that we have two parts with angle alpha and one other part which has a normal field at the center.

But non of them helped me answer.

The problem's solution says that we can use the fact that our section has longitudinal and transverse symmetry. But how it has such a symmetry?

And the fact that if alpha is less than pi/2 we can say that we have two parts with angle alpha and one other part which has a normal field at the center.

But non of them helped me answer.

The problem's solution says that we can use the fact that our section has longitudinal and transverse symmetry. But how it has such a symmetry?