physics

posted by srabani mishra

Two electrons are placed; one at north pole and other at south pole of earth. Find the force between them. Given diameter of earth= 12800 km.

  1. Steve

    recall that the electric force

    F = 9.0*10^9 (q1*q2)/r^2
    So, plug in your values, remembering how many electrons are in a Coulomb, and you have only 1 electron at each pole. r must be in meters, of course, not km.

  2. Anonymous

    (1.8)10to the power -24

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