Question: A parallel-plate capacitor is constructed of two horizontal 14.4-cm-diameter circular plates. A 1.2 g plastic bead with a charge of -5.6 nC is suspended between
A parallel-plate capacitor is constructed of two horizontal 14.4-cm-diameter circular plates. A 1.2 g plastic bead with a charge of -5.6 nC is suspended between the two plates by the force of the electric field between them. Which plate, the upper or lower, is positively charged? What is the charge on the positive plate
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