1- Two infinite lines of charge lie in the x-y-plane, parallel to the y-axis. Line 1 has linear charge density ?1 = 4.2 ?C/m and passes through x = -3.5 cm. Line 2 has linear charge density ?2 = 3.42 ?C/m and passes through x = +3.5 cm. Determine the magnitude and direction of the force on a charge q = -2.51 ?C, placed at the origin. 2-Imagine a Gaussian cube of side length l = 2.75 cm centered on the origin in the previous problem. What is the flux through the cube?