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An electrified rod attracts the pieces of paper after a while these pieces fly away explain why?
Wiki User
∙ 11y ago
The electrified rod has more electrons when we took this rod near to the piece of paper which is neutral the charge from the rod shifts to the paper after the transfer of charge the paper gets charged and now both have an equal number of electrons. Now, these electrons exert a repulsive force on each other. That’s why after a while paper pieces fly away.
A strong electric field source, such as charged rod, brought near a neutral piece of paper, will induce a dipole in the paper- assuming the rod is negatively charged, electrons will be pushed away from it, making the near side of the paper more positive and far side more negative. The polarized paper is then attracted to the rod because the excess positive charges on the near side, due to their proximity to the rod, experience a stronger attractive force than the repulsive force applied to the excess negative charges on the far side.
Once in contact with the rod, however, charges can flow between it and the paper. This will eventually neutralized the excess charge on the paper's near side, leaving the piece with a net charge of its own (because, remember, the excess charge on the far side is still there), which will then repel the rod, making the paper fly away.
ranaziaurrehman88
Wiki User
∙ 11y agothis is becouse the electrified rod is having more electrons where the piece of paper is neutral in nature thats why the rod will have to make a relation with piece of paper to complete its formility of electrons to become neutral which make transfer of electrons from paper and its own atoms...
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