I need help on Part B. I only have one more attempt!!!!!! (The answer is not 2.74 microcoulombs or 1.38 microcoulombs) Please provide the correct answer

V PartA Which plate, the upper or the lower, is positively charged? A parallel-plate capacitor is constructed of two horizontal 18.0-cm-diameter circular plates. A 1.5 g plastic bead with a charge of -4.8 110 is suspended between the two plates by the Upper. force of the electric field between them. Lower. It is impossible to tell. Previous Answers v Correct V PartB What is the charge on the positive plate? Express your answer with the appropriate units. El ~ .. o c q= Value Units Ft_equest