When comb runs through dry hair, it attracts small bits of paper. This is because the comb gets charged by friction. Comb gets electrically charged by friction. Due to electric charge, paper gets polarized and it attracts small bits of paper.
Why is my hair attracted to my 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 does a comb rubbed through dry hair attracts small pieces of paper?
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.
What happens when you run a comb through dry hair?
When the comb runs through dry hair, it gets charged by friction. The molecules in the paper get polarized by the charged comb, resulting in a net force of attraction. If the hair is wet, or if it is a rainy day, the friction between the hair and comb reduces.
Can combing hair cause a spark?
Well, a comb isn’t a point charge. … The voltage required to zap you with static electricity when you touch a doorknob is a surprisingly high number on the order of 10,000 volts, so we’ll say the comb is charged to that potential since a comb can hold enough charge to produce a spark.
Why is hair attracted to plastic comb during a hot day?
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 my hair stand up when I brush it?
The reason your hair stands up is because of the grain of your hair. Hair grows in one direction and has a grain, much like wood. When you brush your hair back you are brushing against the grain. The hair will stand up, but it won’t want to lie down in the opposite direction of growth.
What happens when a dry metal comb is rubbed through dry hair?
Answer: Explanation: Nothing will happen because metal comb will not charge while rubbing with dry hair as compared to plastic comb.
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.
What happens when a plastic comb rubbed several times in dry hair is brought near a heap of pieces of paper?
Answer: 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.
When you run comb through dry hair it attracts bits of paper why what would you expect if the hair is wet or if it is a rainy day?
(a) This is because the comb gets charged by friction. The molecules in the paper gets polarised by the charged comb, resulting in a net force of attraction. If the hair is wet, or if it is rainy day, friction between hair and the comb reduces.
Can you left the bits of paper with the plastic comb Why?
Plastic comb gets electrically charged due to rubbing & therefore it attracts tiny pieces of paper.
Is combing your hair friction?
The comb has become charged by friction, acquiring an excess of electrons. … This leaves a net positive charge on the side close to the comb, and since unlike charges attract, the paper is attracted to the comb.
When combing your hair you scuff electrons from your hair onto the comb is your hair then positively or negatively charged What about the comb?
When combing your hair, you scuff electrons from your hair onto the comb. Is your hair then positively or negatively charged? Your hair will have a positive charge. You just studied 2 terms!
Can static in hair cause hair loss?
Static hair occurs when static electricity builds up in the hair strands, causing them to repel each other. This leads to frizzy hair and, in extreme cases, can even cause hair loss. … These tricks can double up as a hair loss solution as they provide effective hair treatment and make them stronger and long-lasting.
Why do you think comb needed to be run through someone’s hair before it would affect the water?
The comb attracts the stream of water in the same way. The charge on the comb attracts the molecules of water in the stream. Because the molecules in the stream can be moved easily, the stream bends toward the comb.