Back to 5.1 Electric Charge

5.1 Exercise 3

Avg difficulty 2.5

A positively charged rod attracts a small piece of cork. (a) Can we conclude that the cork is negatively charged? (b) The rod repels another small piece of cork. Can we conclude that this piece is positively charged?

OpenStax University Physics Volume 2, 5.1 Electric Charge, exercise 3

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Adapted from University Physics Volume 2 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 2. Imported at revision db44eb9.