17_InstSolManual_PDF_Part14 - 17-14 Chapter 17 E is toward...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
17.43. Set Up: For a point charge, is toward a negative charge and away from a positive charge. Let and For the net electric field to be zero, and must have equal magnitudes and opposite directions. Figure 17.43 Solve: The two charges and the directions of their electric fields in three regions are shown in Figure 17.43a. Only in region II are the two electric fields in opposite directions. Consider a point a distance x from so a distance from gives and is the positive solution. The electric field is zero at a point between the two charges, 0.24 m from the 0.500 nC charge. (b) Let be the negative charge. The two charges and the directions of their electric fields in three regions are shown in Figure 17.43b. and are in opposite directions in regions I and III. But for the magni- tudes of the fields to be equal the point must be closer to the charge that has smaller magnitude, and that occurs only for region I. Consider a point a distance x to the left of so from gives and is the positive solu- tion. The electric field is zero at a point 0.40 m from
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern