Solve the all parts of following question:
Question: You measure an electric field of 1.39×106N/C at a distance of 0.169m from a point charge. There is no other source of electric field in the region other than this point charge:
Part I: What is the electric flux through the surface of a sphere that has this charge at its center and that has radius 0.169m?
Part II: What is the magnitude of the charge?
I need help to find the electric flux through the surface of a sphere.