Question:medium

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. The value of \(q\), so that the resultant force on \(Q\) is zero is

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For a charge at a corner of a square to be in equilibrium, the diagonal repulsion must equal the vector sum of forces along the two sides. Set up force balance along the diagonal direction.
Updated On: Apr 8, 2026
  • \(+0.5\ \mu\)C
  • \(-0.5\ \mu\)C
  • \(+1\ \mu\)C
  • \(-1\ \mu\)C
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The Correct Option is D

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