Answer to Question #288274 in Physics for jovie

Question

A piece of nylon cloth is used to clean the lenses of a pair of glasses. In doing so, which becomes positively charged? Negatively charged? Assume that the lenses are made of glass.

Answer 1

The nylon (electron affinity is +30) will acquire electrons and become negatively charged. The glass (electron affinity is +25) will charge positively by losing electrons.