A negative point charge 10nC is situated at the origin (x, y, z) = (0, 0, 0). What is the electric field intensity E at a point 5m from the origin? (Write your answer in both spherical and Cartesian coordinates) Part II: Calculate the electric field at point (x, y,z) = (1, 3,1) due to a charge q1 = 10nC at (2, 1, 1). ( Dimension is in meters) Part III: A point charge q1 = 200 microCoulombs, is located at point P' (x, y, z)= (1, 2, 3). A second point charge q2 = 30 microCoulombs is located at (x, y, z) =(2, 4, 5). What is the value of force on charge q2? (Medium is free space. Dimensions are in meters)