Why does a comb have a negatively charged?

When a comb is run through dry hair, the comb gets negatively charged due to friction. when the negatively charged comb is brought near a small bit of paper,the electron on the paper are repelled and positive charge will be nearer to the comb.

Why does static electricity attract hair to a comb?

When a comb is run through your hair charges pass between your hair and the comb, so the comb becomes charged either positively or negatively, and the hair oppositely charged. When the comb is brought close to paper an opposite charge is induced in the paper, and the opposite charges attract.

Why do the hairs repel when charged with static electricity?

Electrons have a negative charge, so your hair has a small positive charge when a few electrons leave it. Positive charges repel each other, so your charged hairs repel each other and stand out from your head.

When you comb your hair and the comb becomes negatively charged?

If you comb your hair, for example, electrons leave the atoms and molecules in your hair and travel to the plastic comb. The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge.

Why does static electricity and water?

Water, which is two hydrogen atoms and one oxygen atom, also is made up of charged particles, with the two hydrogen atoms having a positive charge. Because in water’s liquid form these atoms are free to move around any which way, it can easily be affected by a static electrical charge.

Why does static charge affect hair?

What causes static hair? Static hair occurs when your hair builds up an electric charge, meaning it has gained some extra electrons thanks to friction or a change in humidity. That makes the strands of your hair repel each other, leaving your hair frizzy and difficult to style.

What happens when a comb is rubbed with 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.

When a comb is rubbed with dry hair both comb and paper get similarly charged?

Correct: A comb rubbed with hair and brought near pieces of r paper attracts them, because both have dissimilar charges.

Is a comb negatively or positively charged?

Since the comb is negatively charged, it will attract object with a positive charge—like hair. It will also even attract material with no charge—like small pieces of paper. Fur and plexiglass rod. Rubbing a plexiglass rod with rabbit fur or wool will give the rod a negative charge.

Why does my hair get static when I comb it?

The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge. This “separation of charge” is the reason for the collection of effects we call static electricity.

What happens to electrons when you comb your hair?

If you comb your hair, for example, electrons leave the atoms and molecules in your hair and travel to the plastic comb. The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge.

What happens when you pull a comb through your hair?

Like the rod with fur, when the comb is pulled through hair, it acquires a negative charge. That is, it picks up more electrons than it had before. Another example of this the common trick of rubbing a plastic balloon in someone’s hair.