Question 20

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?

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Solution

It happens because the television screen or computer monitor are charged and have static charges accumulated on them and when we touch them with our hands which are uncharged, the charges transfer through our hands and we get a slight shock.

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Question 20

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?

Q. 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?

If you slide out of a car seat on a cold, dry day, you get an electric shock when you touch the car body. If you hold on to the body of the car and slide out, this does not happen. Why is this so?

Q. If you touch a current carrying wire you get a shock, but if on the same wire a bird sits it does not get any shock. Explain why?

• Have you ever read words on the television (or computer) screen? Can you imagine a time when all books will be on computers, and there will be no books printed on paper? Would you like such books better?

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