Why does a metal scale not attract BITS of paper when rubbed with hair? – Quora. with plastic scale it is possible, because rubbing it with your hair generates static electricity – as plastic is a bad conductor of electricity. where as metal scale absorbs electrons and hence it doesn’t generate that effect.
What happens when you rub hair scale?
A plastic scale after being rubbed against dry hair attracts bits of paper as it acquires a negative charge. The plastic scale gets electrically charged due to rubbing against dry hair. The plastic scale acquires charge due to static electricity.
Why does a scale attract paper?
This is because when a scale is rubbed against hair, static electricity is generated through it. Thus the scale gets charged and attracts the pieces of paper.
Why does a comb attracts bits of paper on rubbing in hair?
When the charged comb is brought near bits of paper, the electrostatic force of attraction between the atoms of the paper and the comb caused by the electrons on the surface of the comb polarizes them which attracts the pieces of paper towards the comb.
When a ruler is rubbed in dry hair it attracts tiny bits of paper the force involved is?
Tiny bits of paper get attracted to a plastic comb or ruler which have been recently rubbed. We all know that this is due to electrostatic force.
Why do some materials not attract pieces of paper even after rubbing?
Bits of paper are dielectric and get attracted through dielectrophoretic force. To attract bits of paper, there needs to be high electric field gradient. Rubbing creates an imbalance in number of protons and electrons.
What happens when you rubbed the balloon on your hair?
Rubbing the balloon onto your hair or onto the wool fabric adds electrons to the balloon and causes the balloon to become negatively charged. … Your positively charged hair is attracted to the negatively charged balloon and starts to rise up to meet it.
Does a metal rubbed hair attract pieces of paper?
No. Your hair must become positively charged in order to repel a negative charge. … If you bring a charged comb near tiny pieces of paper, the pieces will first be attracted to the comb, but after touching they will fly away.
Does metal attract paper?
Charged objects attract both metal and paper, in fact they will attract metal more due to the delocalised electrons as opposed to electrons just repelling or attracting within their shells, as the latter doesn’t induce charges, but just distorts them.
Is hair positively or negatively charged?
Hair naturally has a negative charge — sort of like static electricity — says Thomas, but this is insulated by our hair’s protective lipid layer. Damaged hair has higher negative charge, and the hairs literally try to separate from each other, creating frizz.
Why do tiny paper bits get attracted towards a plastic comb after the comb is rubbed against dry hair?
when plastic comb is rubbed with dry hair , it acquires charge due to static electricity and so it attracts pieces of paper which is uncharged.
Why does a rubbed comb attract bits of paper 8?
Initially, the comb is electrically neutral. So it has no effect on the tiny pieces of paper. When the comb is rubbed on a dry cloth, it gets electrically charged. This charged comb exerts an electric force on the tiny pieces of paper and attracts them.
Which of the following will attract bits of paper on being rubbed with hair?
Comb gets charged by friction and attracts bits of paper.
Why do tiny bits of paper get attracted?
Tiny bots of paper undergo electrostatic force , when you rub a comb or pen or anything which is plastic. Therefore they get attracted to the thing which you have rubbed.
When a charged comb is brought near a small piece of paper it attracts the piece does the paper become charged when the comb is brought near it?
When a charged comb is brought near the pieces of paper then an opposite charge is induced on the near end of the pieces of paper so the charged comb attracts the opposite charge on the near end of paper and similar on the farther end. The net charge on the paper remains zero.