Question: A parallel - plate capacitor is constructed of two horizontal 1 2 . 4 - cm - diameter circular plates. A 1 . 8 g

A parallel-plate capacitor is constructed of two horizontal 12.4-cm-diameter circular plates. A 1.8 g plastic bead with a charge of -4.8 nC is suspended between the two plates by the force of the electric field between them.
Part A
Which plate, the upper or the lower, is positively charged?
Lower.
Upper.
It is impossible to tell.
Request Answer
A parallel - plate capacitor is constructed of

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