Why does plastic ruler attract pieces of paper when it is rubbed with dry hair?

Plastic comb gets electrically charged due to rubbing & therefore it attracts tiny pieces of paper. A charged body can attract an uncharged body.

Why does a plastic comb attract pieces of paper after being rubbed on the hair on one’s head?

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.

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When we rub a plastic scale with dry hair it attracts the paper bits of paper which force is responsible for this?

The correct answer is Negative charge. 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.

What happens when you rub a plastic ruler on your hair?

Shifting electric charges

The surface of the plastic ruler gets coated with the electrons rubbed off the atoms in the wool. The same effect is seen when you use a plastic comb on your hair. … Therefore, the Perspex rod will have an overall positive electric charge.

What happens when a plastic scale is rubbed with dry hairs and why?

When rubbed on dry hair, the plastic scale acquires charges, that exerts force on paper pieces and attract them. As soon as we touch the scale, the scale lose charge to the earth through our body.

Why can plastic become charged if you rub it but not metal?

When you rub plastic, you transfer electrons from one material to the other. … Because plastic is an insulator, the electrons cannot flow through it so they effectively get stuck there – they are static. In a metal, the electrons would get conducted away (e.g. back to the material they have come from).

Why does paper being neutral is still attracted by charged plastic scale?

6 Answers. This is because the neutrality of polarity can be changed by electric field in this case. When you create – charge in the comb and you expose the pieces of paper to the electric field created by the charge, you will polarise them so that the part closer to the comb will be + and the other will be -.

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When a plastic comb comb your dry hair and it bring near small pieces of paper the comb attracts pieces of paper why and how?

Comb attracts a bits of paper because Comb is charged object and paper is in neutral so, to be charged one must be in neutral and Comb is negative charged as it gains electrons from hair. Since ,when Comb is placed near to a bits of paper then papers get charged due to induction.

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 plastic ruler is rubbed on hair develops force?

when the ruler is rubbed against dry hair , friction occurs between the two objects and electrostatic force is created.

Is plastic positively or negatively charged?

Choice of the names negative or positive is arbitrary. If you rub a glass rod with a cloth, the charge produced on the glass rod is called positive, whereas when a plastic rod is rubbed with a cloth, the charge produced on the plastic rod is negative.

Does plastic lose or gain electrons?

Some materials like plastic, cloth, and glass do not give up their electrons easily. These are called insulators. Materials such as metals lose their electrons more easily and are called conductors. Since plastics are insulators, they are poor conductors of electricity.

Why does it attract pieces of paper after swirling a comb through dry hair?

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.

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When you rub the plastic cover against your hair which of the two becomes positively charged and loses electrons?

When two materials are rubbed together, the material with the greatest affinity for electrons is the material which takes electrons away from the other material. Saran wrap takes electrons from nylon and acquires the negative charge. In turn, the nylon loses electrons and becomes charged positively. 3.