A small sphere with charge q and mass m is attached to one end of an insulating string of length L. The other end is attached to negatively charged wall. The electric field E due to the charged wall is constant in the vicinity of the charged sphere. The string makes a constant angle with ϴ the vertical. What is the sign and magnitude of charge q? Positive and magnitude Positive and magnitude Negative and magnitude Negative and magnitude Multi-correct Section: For each question or incomplete statement, two of the answers are correct. For each questions you must select both answers. Two electrons are separated by a distance r. of the following statements is correct? There is an attractive electrostatic force between the electrons is a repulsive electrostatic force between the electrons The gravitational force between the electrons much greater than electrostatic force
A small sphere with charge q and mass m is attached to one end of an insulating string of length L. The other end is attached to negatively charged wall. The electric field E due to the charged wall is constant in the vicinity of the charged sphere. The string makes a constant angle ϴ with the vertical. What is the sign and magnitude of charge q? Positive and magnitude Positive and magnitude Negative and magnitude Negative and magnitude Multi-correct Section: For each question or incomplete statement, two of the answers are correct. For each questions you must select both answers. Two electrons are separated by a distance r. of the following statements is correct? There is an attractive electrostatic force between the electrons is a repulsive electrostatic force between the electrons The gravitational force between the electrons much greater than electrostatic force
ap-phys1_electric-force-and-field-practice-problems_2017-03-21.docx