Electric Charge Video Lessons

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Problem: A small metal bead, labeled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between them is 4.9x10-4 N. Assume that A has a greater charge.What is the charge of qA and qB on the beads?

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Let the charge on metal bead A be qA and that on metal bead B be qB.

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Problem Details

A small metal bead, labeled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between them is 4.9x10-4 N. Assume that A has a greater charge.


What is the charge of qA and qB on the beads?

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Based on our data, we think this problem is relevant for Professor Krishna & Avery & Weatherford's class at UF.