Question

When a glass rod is rubbed with silk cloth, the glass rod acquires ________charge.

Answer 1

1. When you are rubbing a glass rod with a silk cloth, electrons are stripped away from the atoms in the glass rod and transferred to the silk cloth.
2. This leaves the glass rod with a positive charge and the silk cloth with a negative charge.

Hence, when a glass rod is rubbed with silk cloth, the glass rod acquires positive charge.