The figure shows two point charges. Calculate the magnitude of the electric field at point P. Use the following data: Q1= - 1.80 μC, Q2= - 1.20 μC, d1= 1.10 m, d2= 1.90 m.
Calculate the size of the force on a charge Q = +1.20 μC placed at P due to the two charges from the previous problem.