What happens when a plastic scale rubbed with dry hair is brought near pieces of paper?
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.
What happens when you rub hair scale?
When negative charges is created in the comb by rubbing it with hair and pieces of paper are exposed to the electric field created by the charge, the part of paper closer to the comb will be positively charged due to electromagnetic induction, and the farther would be negatively charged, causing the paper to be …
What happens when a comb rubbed against hair and is brought near the small pieces of paper?
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.
When a comb rubbed with dry hair attracts pieces of paper this is because the A comb polarizes the piece of paper B comb induces a net dipole moment opposite to the direction of field C electric field due to the comb is uniform D comb induces a net dipole?
Because there is an opposite charge to that of the paper the correct option is Option A. The law of electrostatics holds that unlike charges attract and like charges repel. The answer is Option A, comb polarizes the piece of paper.
When a comb is rubbed with dry hair it attracts small bits of paper?
When a comb rubhed with dry hair attracts pieces of paper. This is because the comb induces a net dipole moment opposite to the direction of field. This happens the field due to charge on comb induces dipole moment in paper by tretching or re-orienting molecules of the dielectric.
Why does the ruler rubbed on hair attract paper pieces?
This happens because when comb is rubbed with hair there occurs a transfer of electrons from hair to the comb. Thus the comb gets negatively charged,when the charged comb is brought near the bits of paper it attracts the positive part of it. A charged comb charges the pieces of paper “by induction”.
Why would torn paper be more attractive to the comb?
Charge accumulates more easily on sharp points rather than edges. Torn pieces of paper have more sharp points (look at it under a magnifying glass, or better yet, a microscope!) compared to cut paper.
What happens when you rub a comb on a piece of wood?
We often comb longer with a wooden comb because it feels so good. The massaging action stimulates the follicles to produce more hair strands, increasing hair growth and producing thicker hair.
Why does a rubbed comb attract pieces of paper?
You can observe static electricity if you run a plastic comb through your hair, then place the comb near small pieces of paper. The paper is attracted to the comb. This happens because the charged comb induces an opposite charge in the paper and as opposite charges attract, the paper sticks to the comb.
Is it easier to get electrostatic effects in dry or moist air Why would torn paper be more attractive to the comb than cut paper explain your observations?
Why does glass rod when rubbed with silk cloth Aquire?
This is because glass is above silk in the triboelectric series (attracts electrons less than silk) and when rubbed, silk ‘takes’ its electrons. And yes, if you had a silk rod it would also attract neutral paper, because paper pieces are turned into dipoles, as you explained. share|cite|improve this answer.
Can you rub acrylic with wool and paper?
The fact that you can rub acrylic with wool and the acrylic attracts paper seems to confirm this since acrylic/wool has the reverse charging direction as glass/silk. (Acrylic is smooth and is a good insulator) Highly active question. Earn 10 reputation in order to answer this question.
Why does a plastic comb pick up paper?
You must have observed that a plastic comb when brought near a piece of paper does not pick up small pieces of a paper. But if you comb your dry hair and bring the comb close to a small piece of paper, you will notice that the bits of paper are attracted towards the comb. Do you know why this happens?
What happens when a rod is rubbed with a duster?
The material that gains electrons becomes negatively charged. The material that loses electrons is left with a positive charge. When a polythene rod is rubbed with a duster, the friction causes electrons to gain energy.
Why does metal scale not attract bits of paper when rubbed?
To attract bits of paper, there needs to be high electric field gradient. Rubbing creates an imbalance in number of protons and electrons. Lets say by rubbing, the scale ended up gaining a few electrons. In a metal scale these electrons are free to move easily under the influence of the electrostatic field created in the rubbed regions.
Why does plastic comb rubber with dry hair attract the bits of paper?
As we move a plastic comb through dry hair, the plastic comb gets polarized and hence static electricity is generated. When this polarized plastic comb is placed near bits of paper, the paper bits get attracted towards the comb as a result of the electric charge on the comb.
What happens when you rub a comb on a paper strip?
The same thing happens when the comb is brought near neutral paper strips. Within the papers strips, the electrons get either repelled or attracted according to whether the comb has a negative or a positive charge. This makes the paper strips have an unlike charge in the direction of the comb, and makes them rise towards it.
Why does a plastic ruler rubbed on hair attract small?
Answer Wiki. It is a interesting thing to do when you are boring, but what is the reason behind it. Actually when we rub plastic ruler on our hairs it’s neutrality get affected or it get charged, it means that the neutrality of the atoms of the plastic ruler get affected so either it releases the charge or it gains the charge.
