The y-axis carries a uniform linear charge density of -2 nC/m, and there is a 8 nC point charge
at the point (3 cm, 0 cm, 0 cm) as well as a -4 nC point charge at the point (-8 cm, 0 cm, 0 cm).
What is the electric flux through a closed spherical surface of radius 4 cm centered at the origin?
I know that flux is 4πkQin or Qin/ε0, i don't understand where the linear charge density comes in. I know that the 8nC charge would be inside the sphere.
The Attempt at a Solution
I tried adding the linear charge density and the 8nC charge and putting it through that formula but i don't understand how the -4nC charge affects the flux, or how to factor it in.
Any help would be greatly appreciated