Consider three charges q, = 7q, q, = -2q, and q = -q (where q= 3.0 uC). (a) What is the total flux through the enclosed surface shown below? N m2/c (b) Now consider a new enclosed surface around the same three charges, shown in the figure below. You wish to add a fourth charge. g to the interior of this enciosed surface so that the net flux through the surface is zero. What must be the value of q for this to be true? Include the sign of the charge in your answer.

Consider three charges q, = 7q, q, = -2q, and q = -q (where q= 3.0 uC). (a) What is the total flux through the enclosed surface shown below? N m2/c (b) Now consider a new enclosed surface around the same three charges, shown in the figure below. You wish to add a fourth charge. g to the interior of this enciosed surface so that the net flux through the surface is zero. What must be the value of q for this to be true? Include the sign of the charge in your answer.