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Homework Help: Quick Physics Help

  1. Nov 24, 2003 #1
    Quick Physics Help....

    X and Z represent point charges of -2.4 x 10^-3 C and +3.3 x 10^-2 C respectively. Calculate the magnitude and direction of the electric field intensity at point Y, 5.00 cm from X and 8.50 cm from Z (they all live in a line).

    Can sumone help me?
  2. jcsd
  3. Nov 24, 2003 #2
    Apply the superposition principle i.e Electric field at point will be equal to electic field due to X + due to Z.
  4. Nov 24, 2003 #3
    So does 4.974 x 10^10 look good?
  5. Nov 24, 2003 #4
    you didn't tell about the location of point ,is it left of X or right of Z or in between which will decide mag+dir
  6. Nov 24, 2003 #5
    X -----5.0------- Y----------8.5--------Z
  7. Nov 24, 2003 #6
    direction will be towards YX and magnitude=9x10^9(2.4x10^-3/5x 10^-2+ 3.3 x 10^-2/ 8.5x10^-2
    =3.92 x 10^9
  8. Nov 24, 2003 #7
    Ah...... It all makes sense now.....
    THanks for the help!
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