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The current in an electric hair dryer is 12 A How much charge and how many electrons flow through the hair dryer in 5 Min?
q=it so q=12 x (300sec) = 3600 C
How is electricity produced with a plastic comb and dry hair?
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.
Give a practical example of static electricity?
An example is rubbing your head with a balloon. If you rubbed hard enough, your hair should stand up. Also, when you are VERY close to lightning, your hair stands up!!
What particles has a negative charge and which has a positive charge?
Negative charge = electron Positive charge = positron Positive charge = proton
What is a positive charge and particles called that have no charge?
A positive charge is a positive electrical charge. Particles with no charge are called neutral particles.
When combing your hair you transfer electrons from your hair onto the comb Is your hair then positively or negatively charged?
It all depends on if you have a negative charge in your hair or a positive charge.
What happens to the electrons on the hair when you brush your hair?
The charge is positive
Why does hair stand on end when touching large charge?
Opposites attract. when you have electricity running through you you gain a positive charge but the air has a negative charge. Therefor your hair stands up.
Does your hair have a negative or positive charge?
Niether. Our hair are electrically neutral as they are insulators. However by friction, it is possible to charge them either positive or negative.
When you comb your hair and the comb is positively charge what will happen to the hair?
Ca(NO3)2
How does a balloon get a charge from rubbing it on the hair?
Friction pulls electrons from the hair to the balloon. This makes the hair positive, and the balloon negative.
What type of charge do you get by rubbing a balloon in your hair?
negative
Is rubbing a ballon in your hair a static charge?
yes
How much does the hair stylist earn?
how much you charge
When you brush your hair what of each atom will move out of your hair?
Nothing from each atom will move out. However, repetitious movement can cause static charge to build up in either the comb or the hair. This charge is caused by some of the electrons transfering.
Why does your hair stick up after you brush it?
this is because of induction of charge .
Why doesn't my hair stand up from static electricity?
The static electricity makes the hair stand up:Dry hair in dry weather can absorb and keep a static chargeEach hair has the same charge,Items with the same charge repel each other,Therefore the hairs repel each other resulting in them standing up to be as far from each other as the length and weight of the hair allows.However, if the hair is not dry enough and the air is not dry enough the static charge will leak away and the hair will not stand up.
