Question

A point charge q₁ = 4q₀ is placed at origin. Another point charge q₂ = -q₀ is placed at x = 12 cm. Charge of proton is q₀ . The proton is placed on x-axis so that the electrostatic force on the proton in zero. In this situation, the position of the proton from the origin is _____ cm

Answer 1

Correct answer is 24

Distance from origin = x + 12 = 24 cm.