A region of space contains a uniform electric field, directed toward the right, as shown in the figure. Which statement about this situation is correct? •C The potential at point A is the highest, the potential at point B is the second highest, and the potential at point C is the lowest. The potential at points A and B are equal, and the potential at point C is lower than the potential at point A. The potential at all three locations is the same. The potentials at points A and B are equal, and the potential at point C is higher than the potential at point A.

A charge of -2.580 µC is located at (2.835 m , 4.730 m ), and a charge of 1.565 µC is located at (-2.774 m , 0). Part A Find the electric potential at the origin. Express your answer using three significant figures. ΑΣφ. ? V = 1.06 • 10 V Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B There is one point on the line connecting these two charges where the potential is zero. Find this point. Express your answers using three decimal places separated by a comma. ? x,y = Submit Request Answer Provide Feedback

• A • B Choose true or false for each statement below about the uniform electric field shown above. The potential energy of a negative charge moved from point B to point A will increase. 8The kinetic energy of a positive charge moved from point A to point B will increase. The electrostatic force on a charge is greater at point B than at point C 8The plate on the right is positively charged 8Point A is at a higher potential than point C

Can you help me find the electric field at the origin. I can draw it once I found it.

Last Revised 12/21/2015 Equipotential Surfaces – 3.2 4) How much work would you have to do to move a 7nC charge along the dashed line path from point P1 to point P2 in figure 1? E Figure 1: Notice that the angle o is the angle between the path taken and the electric field vector. a) Take the electric field shown below to have a constant value of 1500V/m, the distance between P1 and P2 to be 3.00cm, and the angle 0 to be 40° . Show your work. b) What would be the value if the charged moved was a -7nC charge instead? Explain what this answer means in terms of the work being done. Last Revised 12/21/2015 Equipotential Surfaces – 3.3

An electric field of strength E = 9500 N/C is directed along the +x-axis as shown. • C E • A • B What is the magnitude of the potential difference between point B and point A if the distance between these two points is 8 cm? V Submit Answer Tries 0/2 An electron is initially at rest at point B. How much kinetic energy (in electron-Volts, or eV) will the electron gain by moving to the higher potential at point A? eV Submit Answer Tries 0/2 What is the kinetic energy of the electron at point A measured in Joules?

Choose all correct statements about electric fields and/or equipotentials. Electric field lines point away from positive charges. Electric field lines are perpendicular to equipotential curves at any particular point in space. Electric fields are stronger the closer together equipotential curves are in some region of space. Equipotential curves start at positive charge and end at negative charge. | There is no change in the potential energy of an electric charge as it travels along an electric field line. Electric fields are stronger the closer together electric field lines are in some region of space. Electric field lines start at positive charge and end at negative charge. Electric field lines point into negative charges. | There is no change in the potential energy of an electric charge as it travels along an equipotential curve. Electric field lines are parallel to equipotential curves at any particular point in space..

• A • B Choose true or false for each statement below about the uniform electric field shown above. Point C is at a higher potential than point A 8The kinetic energy of a negative charge moved from point A to point C will decrease. 0The electrostatic force on a charge is greater at point B than at point A 0The potential energy of a positive charge moved from point B to point A will increase. The plate on the right is positively charged

A 3.5-cm-diameter parallel-plate capacitor has a 1.5 mm spacing. The electric field strength inside the capacitor is 1.1x10° V/m. You may want to review (Pages 699 - 702) Part A What is the potential difference across the capacitor? Express your answer to two significant figures and include the appropriate units. AVc = Value Units Submit Request Answer • Part B How much charge is on each plate? Express your answer to two significant figures and include the appropriate units. HA Q = Value Units Submit Request Answer