A single point charge (q = +1.85 µC) is fixed at the origin. An imaginary spherical surface of radius 3.00 m is centered on the x axis at x = 5.06 m.
Sketch electric field lines for this charge (in two dimensions) assuming twelve equally spaced field lines in the xy plane leave the charge location, with one of the lines in the +x direction. Do any lines enter the spherical surface? If so, how many? Do any lines leave the spherical surface? If so, how many? Counting the lines that enter as negative and the ones that leave as positive, what is the net number of field lines that penetrate the spherical surface? What is the net electric flux through this spherical surface?