Skin, Wool and Comb

Different materials have different tendencies to attract or give up electrons depending on their chemical properties.

Human skin has a greater tendency to give up electrons than wool, so when we wear a woolen sweater and our skin rubs against the sweater, our skin loses electrons to the sweater. Our skin gains \(\color{red}{\text{positive}}\) charge, and the sweater gains \(\color{blue}{\text{negative}}\) charge.

Wool has a greater tendency to give up electrons than a plastic comb, so when we rub a sweater with a plastic comb, the sweater gains \(\color{red}{\text{positive}}\) charge and comb gains \(\color{blue}{\text{negative}}\) charge.

When we rub our skin with a comb, what charge can we expect the comb to gain?

×

Problem Loading...

Note Loading...

Set Loading...