Asked Dec 27, 2019

If you rub an inflated balloon against your hair and place it against a door, by what mechanism does it stick? Explain.


Expert Answer

When we rub an inflatted balloon with our hair, surface of balloon gets charged. This is called "Charging by friction". When we rub two bodies together, due to work done against friction force, heat is generated, which provided required energy to the outmost electrons and they appear on the surface of the rubbing bodies. So, by the process of charging by friction, the balloon gets some charge on its surface. Now, when place the ballo...

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Electric Charges and Fields