Los pequeños trozos de tejido son atraidos por un peine cargado. Poco después de pegarse al pein

step 1 Okay, so in this question we are told that small pieces of tissues attract to a charge comb, and

Los pequeños trozos de tejido son atraidos por un peine...

Key Concepts

Electrostatic Induction

This concept describes how a charged object can induce a separation of charges in a nearby neutral object without direct contact. When the charged comb approaches the tissue, it causes a rearrangement of charges within the tissue due to the influence of its electric field, leading to regions of slight positive and negative charge even though the tissue starts out neutral.

Polarization

Polarization is the process by which the charges within an electrically neutral object are redistributed when exposed to an external electric field. In the scenario with the charged comb, the side of the tissue nearer to the comb becomes oppositely charged relative to the comb, which results in an attractive force at first. This rearrangement is temporary and is due to the induction caused by the nearby charged object.

Charge Transfer

Charge transfer occurs when objects in contact allow electrons to move from one to the other, resulting in a net charge on one or both objects. In this case, once the tissue comes into contact with the charged comb, a small amount of charge may be exchanged. This transfer can leave the tissue with a net charge of the same sign as that on the comb, so that after initial attraction due to induction, the repulsive electrostatic forces dominate.

Electrostatic Forces

Electrostatic forces govern the interaction between charged objects, where like charges repel and opposite charges attract. The initial attraction observed is due to induced dipoles created by the electric field of the charged comb, while the later repulsion occurs when the tissue acquires a net charge via charge transfer, leading to repulsion in accordance with Coulomb’s law.

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