Science

Some Natural Phenomena

Transfer of Charge

The aluminium foil strips receive the same charge from the charged refill through the paper clip (remember that metals are good conductors of electricity). The strips carrying similar charges repel each other and they become wide open. Such a device can be used to test whether an object Is earning charge or not. This device Is known as electroscope. Thus, we find that lectrical charge can be transferred from a charged object to another through a metal conductor. Touch the end of the paper clip gently with hand and you will And a change In the foil strips. hey come back to their original state. Repeat charging of foil strips and touching the paper clip. Every time you will find that the foil strips collapse as soon as you touch the paperclip with hand. Why does It happen? The reason Is that the foil strips lose charge to the earth through your body. We say that the foil strips are discharged. The process of transferlng of charge from a charged object to the earth Is called earthing.