A particle with a charge of 5.5 x 10-8C is fixed at the origin. A particle with a charge of -2.3 x 10-8 C is moved from x = 3.5 cm on the x axis to y = 4.3 cm on the y axis. The change in potential energy of the two-particle system is: 3.1 x 10-3 ) -3.1 x 10-3 J O 6.0x 10-5 J O -6.0 x 10-5 J O OJ

3 cm / - 2 nC O -6.2E-6 J O-1.1E-5 J -8.2E-5 J What is the electric potential energy of the charge configuration? O -7.8E-6 J 4nC + O -4.8E-6 J 3 cm 3 cm -4 nC

Two charges Q1 = -4 µC and Q2 = +2 µC are placed in the diagonally opposite vertices of a rectangle with sides a = 18 cm and b = 6 cm. How much work have to be done by the electric forces to move a test charge Q3 = +3 µC diagonally from the vertex A to the vertex B? a) 180 J b) 250 J                                           c) 1.8 J                              d) 2.5 J

A charge of -12 nC is uniformly distributed around a thin plastic ring lying in a yz plane with the ring center at the origin. A -5.6 pC point charge is located on the x axis at x = 3.0 m. For a ring radius of 1.2 m, how much work must an external force do on the point charge to move it to the origin?

Three point charges are fixed in place as shown in the figure below. How much electric potential energy would an electron have if placed at point P?* q3 = 15 µC 0.2 m 0.5 m 0.3 m P q1 = 5.0 µC q2 = -10 µC O 1.212 x 10^-18J 7.44 x 10A-14 J 7.44 x 10^-32 J 4.09 x 10^-13 J Other:

Three point charges q1 = +2.7µC, q2 = −3.4µC and q3 = −1.6µC initially are infinitely far apart. They are then brought together and placed at the corners of an equilateral triangle. Each side has a length of 40 cm. Determine the total electric potential energy of these group of charges The final answer should be Example: 0.06N or 6.0x10^-2 N must be expressed to 60x10^-3 N or 60mN

A point charge q, = 5.28 x 106C is held fixed at the origin of a coordinate system. A second charge q2 = -3.96 x 106 C is initially at the coordinates (0.149, 0) m and is then moved to the coordinates (0.211, 0) m. What change in potential energy results from moving q2?

Consider two charged particles. One charge located on the y-axis has a value -2q and is located at a distance r from the origin, point O. The other charge has a value -q and is located at a distance 2r from the origin along the x-axis. The electric potential energy of this system is equal to 0.9 kg² r -0.6- 0.3. 0.6- kq² kq² r kq² -0.9. r kq²

Four objects with positive charges of +1.0 x 10-5 C are placed at the four vertices of a45° rhombus with sides of length 2.0 m.(a) Calculate the electric potential at the centre of the rhombus (this is located where thediagonals intersect). b) Calculate the electric potential energy a charge of +3.0 x 10-5 C would have if placed atthe centre of the rhombus.

Two protons are 3.9 x 10-5 m apart.  What is the electrical potential energy between the two charges? Group of answer choices 9.46 x 10^-24 J 4.76 x 10^-24 J 4.95 x 10^-24 J 5.91 x 10^-24 J 6.58 x 10^-24 J