Phy 214 & 202 OTQ 3: Static Electricity II Monday Jan. 14, 2008

1. Two metal balls, one charged and one not, are suspended from insulating strings close together. They are attracted to each other. Place + and - signs on the sphere B to explain why.

2. After they are brought into contact with each other, they repel each other. Use charges placed on the spheres to explain why.