When a plastic comb is charged by rubbing it against a cloth or hair, it becomes negatively charged. The rice grain acquires a positive charge when it comes into contact with the negatively charged comb. Opposite charges attract each other, causing the rice grain to be attracted to the plastic comb.
To demonstrate static electricity with a plastic comb and dry hair, first rub the comb against the dry hair to create a static charge. Then, bring the charged comb close to small pieces of paper. The paper bits should be attracted to the comb due to the static charge, showcasing the effects of static electricity.
when we rub the plastic scale against the hair it loses the electrons and whenever an object loses electrons it becomes positively charged .When this positively charged plastic scale brought nearer to paper pieces induces charge on it and electrons revolving in discrete orbits are attracted and nucleus is pushed back so that repulsion do not take place.
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.
Plastic is generally an insulator, so a plastic comb cannot carry energy.
Combs are made of plastic, and plastic is not a great conductor of electricity.
To demonstrate static electricity with a plastic comb and dry hair, first rub the comb against the dry hair to create a static charge. Then, bring the charged comb close to small pieces of paper. The paper bits should be attracted to the comb due to the static charge, showcasing the effects of static electricity.
when we rub the plastic scale against the hair it loses the electrons and whenever an object loses electrons it becomes positively charged .When this positively charged plastic scale brought nearer to paper pieces induces charge on it and electrons revolving in discrete orbits are attracted and nucleus is pushed back so that repulsion do not take place.
Hair is attracted to a comb because of the buildup of static electricity on the comb and on the hair. This buildup occurs when you pass the comb through the hair, and can be reduced or eliminated by adding a little bit of water to the comb or to the hair. Depending on the material of the comb, either the comb will be positively charged and the hair negatively charged, or it could be the other way around. Since opposing charges attract each each, the hair then is attracted to the comb.
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.
Plastic is generally an insulator, so a plastic comb cannot carry energy.
Plastic and recalled things
Combs are made of plastic, and plastic is not a great conductor of electricity.
Static electricity produced by rubbing the comb on dry hair creates a charge imbalance that attracts the water molecules in the stream of water. The water molecules are polar, so they are attracted to the charged comb and will align themselves with the electrostatic field, causing the water stream to bend towards the charged comb.
True. When you comb your hair, the comb becomes charged by friction due to the triboelectric effect. Since hair is also a good candidate for triboelectric charging, it becomes oppositely charged to the comb and is therefore attracted to it.
Rubbing a plastic comb with a duster transfers electrons from the duster to the comb due to friction. This process leaves the comb with extra negative charge, making it negatively charged.
Nope, this does not contradict coulomb's law. The reason why the pieces of paper are neutral is that they contain equal amount of positive and negative charges and so they cancel each other out. When you bring a charged plastic comb to the pieces of paper, the charge opposite to that of the plastic comb will be brought to a part of the surface of the paper where the plastic comb is. Opposite charges attract each other, and since you're holding the comb, the pieces of paper will be attracted to the comb.
The negative charge of the object will induce a positive charge on the comb, causing the comb to be attracted to the object.