Question

Two small objects, labeled l and 2 in the diagram above, aresuspended in equilibrium from strings of length L.
Each object has mass m and charge +Q. Assume that the strings havenegligible mass and are insulating and
electrically neutral. Express all algebraic answers in terms of m,L, Q, 6 , and fundamental constants.
(a) On the following diagram, sketch lines to illustrate a2—dimensional view of the net electric ?eld due to the
two objects in the region enclosed by the dashed lines.
, “ _ _ ” W _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ n ~ _ _-‘
(b) Derive an expression for the electric potential at point A,shown in the diagram at the top of the page, which
is midway between the charged objects.
(c) On the following diagram of object 1, draw and label vectors torepresent the forces on the
object.
____..@w____
(d) Using the conditions of equilibrium, write--but do n_otsolve--two equations that could, together, be solved
for 6 and the tension T in the left-hand string