college physics

posted by .

There are four charges, each with a magnitude of 2.0uC. Two are postive and two are negative. The charges are fixed to the corners of a 3.0m square, one to each corner, in such a way that the net force on any charge is directed toward the center of the square. Find the magnitude of the net electrostatic force on any one of these charges.

  • college physics -

    Draw the diagram. alternate the charges. With some thinking, you can see this is the only solution.

    The two adjacent corners have an attractive net force, equal, so the resultant is toward the center:
    Force= k2(cos45)2u*2u/3^2= 1.41k*2u*2u/9


    Now the replelling force frm across the square is k2u*2u/(3sqrt2)^2= .5k(2u2u/9)

    so the net force of attraction is...

    (1.41-.5)k2u2u/9 N

  • college physics -

    find the resultant force on the charge at the center

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    1.There are four charges, each with a magnitude of 2.5 µC. Two are positive and two are negative. The charges are fixed to the corners of a 0.29 m square, one to a corner, in such a way that the net force on any charge is directed …
  2. physics

    Four point charges have the same magnitude of 2.62 10-12 C and are fixed to the corners of a square that is 3.80 cm on a side. Three of the charges are positive and one is negative. Determine the magnitude of the net electric field …
  3. Physics

    1) Charges of +4uC and -6uC are placed at two corners of an equilateral triangle with sides of 0.10m. At the third corner, what is the electric field magnitude created by these two charges?
  4. Physics

    There are four charges, each with a magnitude of 2.65 microcoulombs. Two are positive and two are negative. The charges are fixed to the corners of a 0.408-m square, one to a corner, in such a way that the net force on any charge is …
  5. Physics

    Three Point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. As the drawing shows(a) The charge at any one corner experiences forces from the charges …
  6. Physics

    Three Point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. As the drawing shows(a) The charge at any one corner experiences forces from the charges …
  7. Physics

    Identical point charges of +2.9 µC are fixed to three of the four corners of a square. What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner …
  8. Physics

    Identical point charges of +1.1 ¦ÌC are fixed to three of the four corners of a square. What is the magnitude q of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner …
  9. physics

    Four point charges are located at the corners of a square with sides of length a. Two of the charges are +q, and two are -q. Find the magnitude and direction of the net electric force exerted on a charge +Q, located at the center of …
  10. AP Physics 2

    Identical point charges of +3.3 µC are fixed to three of the four corners of a square. What is the magnitude |q| of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner …

More Similar Questions