Question

The charge which is acquired by the glass rod when rubbed with a piece of silk is?

Answer 1

1. A glass rod had free electrons on its surface that are loosely bound.
2. When the rod is rubbed with a piece of silk, it loses the electrons.
3. Now the rod has fewer electrons whereas the piece of silk has gained electrons.
4. Hence, the rod is positively charged and the silk piece is negatively charged.

Hence, the charge which is acquired by the glass rod when rubbed with a piece of silk is positive.