Physics, asked by pemadema663, 7 months ago

Why does a plastic ruler that has been rubbed with cloth have the ability to pick up small pieces of paper? Why is this difficult to do on a humid day?

Answers

Answered by Arpita1810

The rulers negative charge polarizes the charge on the paper, so basically it attracts the positive charges and repel the electrons. Enough electric force is created and lifts the paper!

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Why does a plastic ruler that has been rubbed with cloth have the ability to pick up small pieces of paper? Why is this difficult to do on a humid day? ​

Answers

Why does a plastic ruler that has been rubbed with cloth have the ability to pick up small pieces of paper? Why is this difficult to do on a humid day?