Two small spheres, each carrying a net positive charge, are separated by 0.400 m. You have been
Question:
Two small spheres, each carrying a net positive charge, are separated by 0.400 m. You have been asked to perform measurements that will allow you to determine the charge on each sphere. You set up a coordinate system with one sphere (charge q1) at the origin and the other sphere (charge q2) at x = +0.400 m. Available to you are a third sphere with net charge q3 = 4.00 × 10-6 C and an apparatus that can accurately measure the location of this sphere and the net force on it. First you place the third sphere on the x-axis at x = 0.200 m; you measure the net force on it to be 4.50 N in the +x-direction. Then you move the third sphere to x = +0.600 m and measure the net force on it now to be 3.50 N in the +x-direction.
(a) Calculate q1 and q2.
(b) What is the net force (magnitude and direction) on q3 if it is placed on the x-axis at x = -0.200 m?
(c) At what value of x (other than x = {q) could q3 be placed so that the net force on it is zero?
Step by Step Answer:
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman