When a plastic rod is rubbed with a wool cloth, the wool acquires a positive charge. What is the best explanation for this effect?
A.
protons are transferred to the cloth
B.
protons are transferred to the rod
C.
electrons are transferred to the cloth
D.
electrons are transferred to the rod
C. Electrons are transferred to the cloth
When the plastic rod is rubbed with the wool cloth, electrons are transferred from the rod to the cloth. This leaves the rod with a positive charge due to the loss of electrons, and the cloth with a negative charge due to the gain of electrons.