Two small equal point charges of magnitude are suspended from a common point on the…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
Two small equal point charges of magnitude q are suspended from a common point on the ceiling by insulating mass less strings of equal lengths. They come to equilibrium with each string making angle θ from the vertical. If the mass of each charge is m, then the electrostatic potential at the centre of line joining them will be (4πϵ01=k) .
(1) 2kmgtanθ
(2) kmgtanθ
(3) 4kmg/tanθ
(4) kmg/tanθ