physics

posted by .

There are two +q charges and two -q charges on the corners of a square of size a. Left upper corner= +q charge, right upper corner= -q charge, left lower corner= -q charge, and right lower corner= +q charge. Compute the net force on each charge.

I know that F= 9x10^9 Nm^2/C^2 x qaxqb/r^2 and that all the charges are attracted to eachother. so would i just find the forces for each charge using that equation, but how do i deal with it pulling in different directions?

  • physics -

    For each charge, you have to add the forces due to the three other charges as vectors acting in different directions. Some of the forces are attraction and some are repulsion.

    You have the correct formula for the force on each pair of charges.

    When you add the forces due to the two adjacent corners, it will be an attraction actng along the diagonal, sqrt2 times larger than the force due to either adjacent corner. The opposite corner will generate a repulsion force in the opposite direction, but lower than the combined effect of the other two forces.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    At each corner of a square of side script i there are point charges of magnitude Q, nQ, mQ, and 4Q, where n = 3 and m = 3. Determine the force on the charge mQ due to the other three charges. (mQ is on the bottom right corner, nQ is …
  2. Physics

    On the lower left corner of a square is a fixed charge qLL = 1.5x10^-9 C and on the loser right corner is a fixed charge qLR = 4.0x10^-9 C. The square has a side length L = 0.25 meters. a) Find the electric potential energy of a third …
  3. Physics 1112 Electric charge

    As shown in the figure, a square has sides of 8.0 cm with a charge of +6.0 µC at one corner (a) and with charges of -2.0 µC at the remaining three corners (b, c, and d). The figure is just a square with no measurements. Corner a …
  4. Physics

    A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle: +q1 (upper left corner), +q2 (lower right corner), and -q (lower left corner). The net electric field at …
  5. physics

    A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle: +q1 (upper left corner), +q2 (lower right corner), and -q (lower left corner). The net electric field at …
  6. Physics Superpostion Principle

    four charged particles are placed so that each particle is at the corner of a square. the sides of the square are 15 cm. the charge at the upper left corner is +3.0 microcoulombs, the charge at the upper right corner is -6.0 microcoulombs, …
  7. Physics

    Three charges are located at the corners of a rectangle as follows: Charge A: lower left corner, -3.0 μC Charge B: upper left corner, -6.1 μC Charge C: upper right corner, +2.7 μC The distance between A and B is 0.16 m and …
  8. Physics

    In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty …
  9. Physics

    I don't really know where to start on the problem. Would I use V = k(q/r)?
  10. Physics

    Three charged particles are arranged on corners of a square as shown in the figure below, with charge -Q on both the particle at the upper left corner and the particle on the lower right corner, and charge +2Q on the particle at the …

More Similar Questions