Two equal point charges `Q=+sqrt(2) mu C` are placed at each of the two opposite corner
Channel: Doubtnut
Date: 2020-02-09

Two equal point charges `Q=+sqrt(2) mu C` are placed at each of the two opposite corners of a square and equal point charges q at each of the other two corners. What must be the value of q so that the resultant force on Q is zero?