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You take a jumper and a sock out of the dryer and find that they are stuck together.
Some electrons have transferred from the jumper to the sock.
This build up of electrons on the sock make it electrically charged (negatively so).
The loss of electrons from the jumper make it electrically charged (positively so).
And opposite charges attract.
Q. Why do the electrons transfer from the jumper to the sock?
A. The rubbing against each other due to the movement in the dryer? Like a balloon rubbing against your hair?
Q. Why does this rubbing, in both cases, cause such a transfer?
Q. Why is the transfer from the jumper to the sock and not vice versa? Why from the hair to the balloon and not vice versa?
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Google AI Overview;
Rubbing causes electrons to transfer because it increases the amount of contact between atoms of different materials, which allows electrons to move from one material to another:
•Electron affinity
The material with a greater affinity for electrons receives them, while the material with a lesser affinity provides them. For example, when a rubber balloon is rubbed on a wool sweater, electrons move from the wool to the balloon.
•Static electricity
The electrostatic charge that builds up on a material's surface is called static electricity. When two surfaces are rubbed together, one surface gains a positive charge and the other gains an equal negative charge.
•Polarization
Electrons can also move within a neutral object due to the electric field of a nearby charged object. This can happen without the two objects making direct contact.
Static electricity can be used in many activities, such as photocopying, printing, and paint spraying.
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