Why are body hair raises to words the TV screen give reason
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Due to electrostatic attraction !
Except for the part about your body being a good insulator except for your hair. The truth is, most of your body is a good conductor not an insulator. Water conducts electricity, and since 70% of your body is water, you conduct pretty well.
Since like charges repel each other, when your body carries an electric charge, those charges are going to try to separate from each other as much as possible. They are going to go to the extremities of your body, like the hair follicles on your skin and head, and then they're going to try to separate even more. Since your hair is very light, even a little charge can be enough to push the hairs apart and make them stand on end.
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