Summary AP Physics C: E&M - OpenStax University Physics Volume 2, Chapter 5 Problems 65, 73, 100, 101, 103

AP Physics C: Electricity and Magnetism. OpenStax University Physics Volume 2, Chapter 5 Problems 65, 73, 100, 101, 103 with Answers and Work. 5.4 Electric Field 65. A particle of charge 2.0×10−8C experiences an upward force of magnitude 4.0×10−6N when it is placed in a particular point in an electric field. (a) What is the electric field at that point? (b) If a charge q=−1.0×10−8C is placed there, what is the force on it? 73. If the electric field is 100N/C at a distance of 50 cm from a point charge q, what is the value of q? 5.6 Electric Field Lines 100. Which of the following electric field lines are incorrect for point charges? Explain why. 101. In this exercise, you will practice drawing electric field lines. Make sure you represent both the magnitude and direction of the electric field adequately. Note that the number of lines into or out of charges is proportional to the charges. (a) Draw the electric field lines map for two charges +20μC and −20μC situated 5 cm from each other. (b) Draw the electric field lines map for two charges +20μC and +20μC situated 5 cm from each other. (c) Draw the electric field lines map for two charges +20μC and −30μC situated 5 cm from each other. 103. Two charges of equal magnitude but opposite sign make up an electric dipole. A quadrupole consists of two electric dipoles that are placed anti-parallel at two edges of a square as shown.Four charges are shown at the corners of a square. At the top left is positive 10 nano Coulombs. At the top right is negative 10 nano Coulombs. At the bottom left is negative 10 nano Coulombs. At the bottom right is positive 10 nano Coulombs. Draw the electric field of the charge distribution.