- #1
Pablo3
- 11
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Missing template. Originally posted in technical forums.
Hello , I post a message because I will need help with this exercise I would like to knowif my answer are
good,
I'm french :
An infinite hollow cylinder charge is constituted of a sheath whose outer limits are R2 and R3. Wearing a uniform charge density ρ
Question 2)calculate the total electric field E at any point M ( r ,θ, z) into space.
3) Give the appearance of E according to the relevant variable .
4 ) Calculate the electrostatic energy carried by a cylinder length L.
And my answers are:
2)There are 3 cases:
The first r<R2
Whe can say that :
And Er(r)=0 because ρ=0.
Second and third case:
3)
I had a problem to place A and B because I do not know how far they must be put to the origin O ( 0,0,0) .
I do not know either the distance required between R2 and R3 on the drawing or the shape of the curve.
4)
and Ep=0 because ρ=0.
Also the beginning of my reasoning is here(in french,but the only the formulas are important).
good,
I'm french :
An infinite hollow cylinder charge is constituted of a sheath whose outer limits are R2 and R3. Wearing a uniform charge density ρ
Question 2)calculate the total electric field E at any point M ( r ,θ, z) into space.
3) Give the appearance of E according to the relevant variable .
4 ) Calculate the electrostatic energy carried by a cylinder length L.
And my answers are:
2)There are 3 cases:
The first r<R2
Whe can say that :
And Er(r)=0 because ρ=0.
Second and third case:
3)
I had a problem to place A and B because I do not know how far they must be put to the origin O ( 0,0,0) .
I do not know either the distance required between R2 and R3 on the drawing or the shape of the curve.
4)
and Ep=0 because ρ=0.
Also the beginning of my reasoning is here(in french,but the only the formulas are important).