Question

Two charges 2Q and -Q are located distance d apart. At what point on the line joining the

two charges is the electric field intensity zero?​

Answer 1

$so \: the \: point \: (P)\: should \: be\: \frac{d \sqrt{2} }{1 + \sqrt{2} } \\ distance \: away \: from \: point \: (A) \\ \frac{d}{1 + \sqrt{2} } \: behind \: the \: point \: (B) \: to \: \\ for \: electric \: intensity(E) = 0$