OTQ # 4 Static Electricity III Wednesday 1-16-08

QUESTION 1: A positively charged object is placed close to a conducting object on an insulating glass pedestal (a). After grounding the opposite side of the conductor for a short amount of time (b), the conductor is observed to be negatively charged (c).

Based on the above observation we can conclude that within the conductor:

1. both negative and positive charges move freely

2. only the negative charges can move freely

3. only the positive charges can move freely

4. can't really conclude anything