A point charge q1 =-5.00 nC is at the point x=1 meters, y=2 meters. A point charge q2=+10 nC is at the point x = 2 meters, y=0.
(a) Calculate the electric potential at the origin due to q1.
(b) Calculate the electric potential at the origin due to q2.
(c) How much work must we do to bring a particle of charge q3=+10nC initially at rest from an infinite distance to the origin? Assume that the electric potential is zero at infinity.