P3-Four identical 10 uC point charges are located at the corners of a square defined by -2

P3- Four identical 10 PC point charges are located at the corners of a square defined by 2 < x, y < 2, z = O: A single 30 WC B)int charge is Iated at (O, O, a. Fund the force on a I O PC point charge at (O, O, 4) b. Calculate the electric field intensity at (O. O, 2)