A girl was using a comb to straighten her hair. Everytime she brought the comb near, her hair moved. This is due to electricity.
Finally, the farmer added that the carded wool is straightened more and the fibres are aligned. “This process was similar to using a roller comb to straighten your hair”, he told Appu. Can you guess the name of this process?
When a comb rubbed on hair is brought near bits of paper, it attracts them, because: