(a) Find the electric potential produced by a point charge of 7.22 * 10-7 C at a distanceof 2.75 m. (b) Find the point charge that produces an electric potential of -5120 V at adistance of 3.55 m from the charge.

Two identical point charges, each of 2.0 nC are held fixed on the x-axis, one at x= -3.0 cm, y =0 and the other at x = +3.0 cm, y= 0. In what follows, the electric potential is taken to be zero at infinity.   Calculate the electric potential VA at location A of coordinates x = 0, y= +4.0 cm, and the electric potential VB at location B of coordinates x = 0, y = 0 (the origin).  An electron is released from rest at location A and immediately starts moving along the y axis towards location B. Use conservation of energy to calculate the speed of the electron when it reaches location B.

A) find the total electric potential difference due to these charges at point P located at (3,4) m coordinates. B)How much work required to bring a third point charge of 4micro coloumb from infinity to p?

A +2 charge is placed at x = −2.  (a) What charge can be placed at x = 1 so that the electric potential at x = 0 is zero? (b) What charge can be placed at x = 4 so that the electric potential at x = 0 is zero?

What is the electric potential in point Pat (x,y) = (d/2,d/2) given three point charges 91 = (-2.90x10^-9) C, 92 = (-7.20x10^-9) C and q3 = (-3.500x10^-9) C, located at (0,0), (0,d) and (d,d), respectively, with d = (1.0x10^-2) m ? %3D Answer in units of volts (V) with scientific notation. 93 d q1. 92 d

Part (a) Find the electric potential Vp at point P, in volts. Assume the potential is zero at infinity. Part (b) How much work W, in joules, would you have to do to bring the third charge, 93, from very far away to the point P? Part (c) What is the total potential energy U, in joules, of the final configuration of three charges?