Recent content by idkwhatimdoing

  1. I

    Electric Field of Concentric Spheres and Opposite Charges

    Would it be the same as the electric field of a point charge?
  2. I

    Electric Field of Concentric Spheres and Opposite Charges

    Homework Statement The figure to the right shows two concentric spheres made from insulators. One has radius and the other has radius R1, and the other has radius R2. The inner sphere has a positive charge density, +ρ, while the insulator region between the inner and outer spheres has a...
  3. I

    Finding the charge of a particle given the charge of another

    Something like this? E1+E2+E3 = 0 kQ/16d^2 + kq2/9d^2 + kq3/25d^2(cos theta - sin theta) = 0 Not sure what to do from here though..
  4. I

    Finding the charge of a particle given the charge of another

    Homework Statement The problem should be attached, not sure how to do part b. Homework Equations E=kQ/r^2 F=kQ1Q2/r^2 Enet=E1+E2+E3 The Attempt at a Solution I figured out a, but have no idea how to do b. I was thinking of summing up the electric field vectors at point p, but there are 3...