I cant seem to figure out what the equation to figure this question out is if someone can help it would be greatly appreciated.
https://www.smartphysics.com/Content/smartPhysics/Media/Images/EM/03/h3_lineD.pngAnother infinite line of charge with charge density λ2 = -6.3 μC/cm parallel to the y-axis is now added at x = 4.4 cm as shown.
What is the new value for Ex(P), the x-component of the electric field at point P?
other values:
λ1 = 2.1 μC/cm
height = 8.7 cm
radius = 8.8 cm