Electric Field Problem

[z_sharp]

Hey all, I'm not sure where to start on this question. :confused: :confused: Any ideas would be spectacular.

A tiny conducting ball of mass 1.00 g and charge 20.0 times 10^{-6} is hung from a non-conducting, massless thread. The electric field of magnitude 10^3N/C existing in this region is uniform and horizontal. Find the maximum angle of deviation between the thread and the vertical for the equilibrium, position of the ball.

Thanks Everyone

[Nylex]

Think about the forces involved. What condition must be satisfied for equilibrium? Edit: diagrams usually help in problems like this, too.