When a plastic rod is rubbed with a wool cloth, the wool acquires a positive charge. What is the best explanation for this effect?

Question

a
electrons are transferred to the rod
b
protons are transferred to the rod
c
electrons are transferred to the cloth
d
protons are transferred to the cloth

Answer 1

The best explanation for the effect when a plastic rod is rubbed with a wool cloth, resulting in the wool acquiring a positive charge, is:

c) electrons are transferred to the cloth.

When the plastic rod is rubbed against the wool, electrons move from the wool cloth to the plastic rod. This leaves the wool cloth with a deficiency of electrons, resulting in a positive charge, while the plastic rod gains those electrons and becomes negatively charged.