Question

You might have observed on a dry day that when you touch the
screen of a television or computer monitor (with picture tube),
you get a slight shock. Why does it happen?


NCERT Class VIII
Science - Exemplar Problems

Chapter 15. Some Natural Phenomena

Answer 1

When we touch the screen of a television or computer monitor (with picture tube) we get a slight shock because the screen of the television and the hair on the skin get charged due to electro static force.

What happens is that electric charge gets collected on the screen and when a part of the body i.e. a hand comes in contact with the screen by touching it, the accumulated charge on the screen dispenses itself through our body, causing us slight shock.

Answer 2

HEY!!

____________________________

✔You are right this phenomenon happens due to the accumulation of static charges on the computer monitor or TV screen.

✔These charges tend to transfer via our hands (which are not charged) when we touch them, t we feel a slight shock.