1. Polarization:
* Neutral objects are made up of atoms with equal numbers of protons (positive charge) and electrons (negative charge).
* When a charged object (let's say a positively charged rod) comes near a neutral object, the electrons in the neutral object are attracted to the positive charge of the rod. This causes a slight shift in the distribution of charges within the neutral object.
* The side of the neutral object closest to the charged rod becomes slightly negatively charged, and the far side becomes slightly positively charged. This is called polarization.
2. Attraction:
* Because of the polarization, the neutral object now has a region with an opposite charge to the charged object. This results in an attractive force between the two objects.
* This explains why a charged balloon can stick to a neutral wall.
3. No Net Charge:
* It's important to remember that the neutral object *remains neutral* overall. The charges are simply redistributed within the object.
In Summary:
While a neutral object itself doesn't have a net charge, it can be temporarily polarized by the presence of a charged object. This polarization leads to an attractive force between the neutral object and the charged object.
