Reference no: EM132715935

1) Two uniformly charged spheres are separated by a distance of 20 cm from the center of one sphere to the center of the other. Each sphere contains a charge of 6 x 108 electrons. Calculate the force that one charged sphere exerts on the other.

2) When a charged particle of -3.2 x 10^-16 C is placed at a point in space, it is subject to an electrostatic force of 1.28 x 10^-16 N upward. What is the electric field strength at this point?

3) Two equal positive charges of 4.00 x 10^-10 C are separated by 10cm with locations of (-5cm, 0) and (5cm, 0), respectively. A unit test charge is located at point P(0, 5√3 cm), 10 cm from each charge. Calculate the magnitude and direction of the electric field at point P.