Hair typically carries a slight negative charge due to the presence of proteins and other molecules that can lose or gain electrons. This negative charge can cause hair strands to repel each other, contributing to the phenomenon of static electricity. When hair is brushed or styled, the friction can further increase this charge, leading to flyaways and frizz.
Combing hair does not result in a significant build-up of electric charge, so the girl's hair is not typically charged negatively or positively as a result of combing.
Rubbing a balloon on your hair creates static electricity, which causes your hair to have a positive charge. The balloon, in turn, becomes negatively charged. Opposite charges attract, so the negatively charged balloon will attract the positively charged hair, causing it to stick to the balloon.
To find the charge that flows through the hair dryer, multiply the current (12 A) by the time (5 min converted to seconds, so 300 s): Q = I * t. Substituting the values, Q = 12 A * 300 s = 3600 C. To find the number of electrons, use the fact that 1 electron carries a charge of approximately 1.6 x 10^-19 C. Divide the total charge by the charge of one electron: 3600 C / 1.6 x 10^-19 C ≈ 2.25 x 10^19 electrons.
When you rub a balloon in your hair, the balloon gains electrons from the hair, resulting in a negative charge on the balloon. This process is known as triboelectric charging, where materials can become charged through friction. As a result, the hair loses electrons and becomes positively charged. Thus, the balloon ends up with a surplus of electrons.
An imbalance in electric charge in non-conductors like hair and a plastic comb can be produced by the mechanical work done on the materials. This amounts to a buildup of static electricity by generating pairs of charge carriers - electrons on one material (the comb) leaving the hair positively charged. Normally there is no completed circuit or appreciable current, the electrostatic discharge of the potential created with static electricity might be manifest as a spark, or on larger scales a lightning bolt. In the case of the comb and hair one can appeal to the atomic model to explain the phenomenon; some materials can lose electrons from their outer shells where the attraction to those electrons is a bit weaker, other materials with incomplete outer shells may tend to gain them. This is called contact-induced charge separation, the action of combing through the hair being the cause.
When a balloon is rubbed on your hair, electrons are transferred from your hair to the balloon, giving the balloon a negative charge and your hair a positive charge. This results in an overall negative net charge on the balloon.
When you brush or comb your hair, some of the electrons from the hair are transferred to the brush or comb, giving them a negative charge. This leaves your hair with a positive charge, which creates static electricity.
Rubbing a balloon in your hair can create a static electric charge on the balloon. This charge is usually negative because electrons from your hair are transferred to the balloon, leaving your hair positively charged.
Niether. Our hair are electrically neutral as they are insulators. However by friction, it is possible to charge them either positive or negative.
Electrons move between the hair and the balloon.
Human hair can carry a small electric charge known as static electricity due to friction or rubbing against other surfaces. This charge can make hair stand on end or attract lightweight objects.
If a comb becomes negatively charged after being pulled through your hair, it suggests that your hair has a positive charge. This is because opposite charges attract, so the comb's negative charge likely resulted from electrons being transferred from your hair to the comb, leaving your hair positively charged.
The static charge on your sweater can attract your hair due to opposite charges. When you pull the sweater over your head, friction between the sweater and your hair creates an electrical charge, causing your hair to stick to the sweater.
When you comb your hair with a plastic comb, the comb will acquire a negative charge. This is because the friction between the comb and your hair causes the transfer of electrons, leading to an imbalance of negative charge on the comb.
If you transfer electrons from your hair to the comb, your hair will become positively charged because it loses electrons. The comb, having gained electrons from your hair, would be negatively charged.
When you touch a large charge, electrons transfer from the charge to your body, creating an opposite charge on you. This causes your hair, which is made up of positively charged strands, to repel each other and stand on end due to the electrostatic force.
When you rub a balloon on your hair, electrons are transferred from your hair to the balloon, giving the balloon a negative charge and your hair a positive charge. This transfer of charges creates static electricity, causing the balloon to stick to objects like a wall or your hair to stand on end.