Physics · JEE | Electric Charges and Fields

Three charges \( +q, +q \) and \( -q \) are placed at the vertices of an equilateral triangle of side \( l \). The magnitude of the resultant electrostatic force on any one of the charges is:

1. A
   \( \frac{1}{4\pi\varepsilon_0} \frac{q^2}{l^2} \)
2. B
   \( \frac{\sqrt{2}}{4\pi\varepsilon_0} \frac{q^2}{l^2} \)
3. C
   \( \frac{\sqrt{3}}{4\pi\varepsilon_0} \frac{q^2}{l^2} \)
4. D
   \( \frac{2}{4\pi\varepsilon_0} \frac{q^2}{l^2} \)