A uniform linear charge of 2.0 nC/m is distributed along the x-axis from x = 0 to x = 3 m. Which of the following integrals is correct for the x-component of the electric field at y = 2 m on the y-axis?
1) ∫(2πε₀)(λdx)/√(x²+y²)
2) ∫(2πε₀)(λdx)/√(x²+y²) * (x/y)
3) ∫(2πε₀)(λdx)/√(x²+y²) * (y/x)
4) ∫(2πε₀)(λdx)/√(x²+y²) * (x/y²)
