When the negatively charged ruler is brought near to the paper pieces, they are attracted to the ruler as the the electrons move around on the paper because of the large charge on the ruler. Electrons will move away from the ruler leaving a positive charge on the paper near the ruler, so they are attracted.
Why does plastic ruler attract pieces of paper when it is rubbed with dry hair?
Plastic comb gets electrically charged due to rubbing & therefore it attracts tiny pieces of paper. A charged body can attract an uncharged body.
Why do tiny bits of paper get attracted?
Tiny bots of paper undergo electrostatic force , when you rub a comb or pen or anything which is plastic. Therefore they get attracted to the thing which you have rubbed.
Is paper positively or negatively charged?
The bits of paper are electrically neutral, but when you bring the rod close to them, even though paper is not a conductor, that is, the charges within it are not free to move about as a current, the negative charges have enough mobility that they are repelled by the rod.
What force is acting on the pieces of paper before the ruler is brought close to them?
When the ruler is brought close to bits of paper, the attractive electric force accelerates the paper bits upward against the force of gravity.
Why does it attract pieces of paper after moving a comb through 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.
Why do tiny bits of paper get attracted when brought close to comb?
This happens because when comb is rubbed with hair there occurs a transfer of electrons from hair to the comb. Thus the comb gets negatively charged,when the charged comb is brought near the bits of paper it attracts the positive part of it.
Why would torn paper be more attractive to the comb than cut paper?
Charge accumulates more easily on sharp points rather than edges. Torn pieces of paper have more sharp points (look at it under a magnifying glass, or better yet, a microscope!) compared to cut paper.
Why does static electricity attract paper?
The fibers have lost electrons giving them a positive charge. The rubber gained electrons giving it a negative charge. The positively charged fibers are now attracted to the negatively charged balloon. The negatively charged balloon attracts the paper.
Why is hair attracted to comb during a hot day?
The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge. … If two objects have different charges, they attract (or pull towards) each other.
Do two positives attract or repel?
If two positive charges interact, their forces are directed against each other. This creates a repellent force as shown in the illustration. … The two charges repel each other. If a positive charge and a negative charge interact, their forces act in the same direction, from the positive to the negative charge.
Why did the pieces of tape behave the way they did when they were brought near the comb?
Because opposite charges attract, the two pieces of tape attract each other. When you run a plastic comb through your hair, the comb becomes negatively charged. … An uncharged object attracts charged objects. When you hold your hand near a positively charged piece of tape, the tape attracts electrons in your body.
Why do you think comb attracts some of your hair strands and papers Why do you think balloon attracts hair strands?
Basically, when an electrification takes place, electrons are not created but they are transferred….. in the case of comb attracting tiny tiny bits of papers when rubbed with dry hair is because electrons from the dry hair gets transferred to the comb and now the comb induces a dipole in the bitties of paper and the …