- #1
playoff
- 80
- 1
An infinitely long line charge with a linear density +λ inside an infinitely long cylinder of radius R and area density -λ/(2pi*R).
So if I set up a cylindrical Gaussian surface with length L, the positive charge inside the surface would be λL and negative charge inside the surface would be area density multiplied by area so -λ/(2pi*R)*(2pi*RL) => -λL, cancelling each other out no matter what.
But the problem is that electric field has to exist, because I am supposed to compare this derived electric field with experimental data.
Did I miss out on something?
So if I set up a cylindrical Gaussian surface with length L, the positive charge inside the surface would be λL and negative charge inside the surface would be area density multiplied by area so -λ/(2pi*R)*(2pi*RL) => -λL, cancelling each other out no matter what.
But the problem is that electric field has to exist, because I am supposed to compare this derived electric field with experimental data.
Did I miss out on something?