Question

What happens when you rub an ebonite stick with a wool cloth?

Answer 1

That procedure produces several effects. Perhaps the most noticeable one is that the ebonite stick becomes clean and shiny.

Answer 2

It is called static electricity...

electrical nature of matter

the stick become deficient in electrons and said to be positively charge. The wool having gained the electrons lost by the rod, has an excess of electrons and becomes negatively charge.