HOW ELECTROSTATICS INFLUENCE OUR LIVES?
INTRODUCTION
We all are familiar with the term electricity which comes from batteries and which is used to light bulbs, buzzers, and other electrical devices. We also know that conductors are those objects which conduct electricity easily and insulators do not conduct electricity at all. This is basic knowledge but right now we are going into detail about electricity and static electricity.
ELECTROSTATICS
Many of us have this wrong concept in our mind that insulators like plastic and wood cannot carry charges at all. This is a wrong concept. The truth is that most insulators carry a special type of charge which conductors do not carry. The charge is created due to static electricity and is known as an electrostatic charge.
We might have heard of the term static electricity but most of the time we dismiss it as a small and unimportant part of electricity. But we are wrong; in this essay you will see the uses of electrostatics in our daily lives.
Static electricity can be produced by rubbing together two objects made of different materials. Electrons move from the surface of one object to the surface of the other if the second material holds onto its electrons more strongly than the first does. The object that gains electrons becomes negatively charged, since it now has more electrons than protons. The object that gives up electrons becomes positively charged. We experience many example of static electricity daily. For example when we close the television and then immediately put our hand on the screen, a cackling sound is produced and the hair on our hand stands up. The same thing happens when we take off a woolen sweater or when you get of your car seat.
When rubbed with each other, or with a piece of dry wool, these insulators become positively or negatively charged. The charge of the insulator depends on its affinity to electrons.
MORE AFFINITY TO ELECTRONS - BECOMES NEGATIVELY CHARGED
LESS AFFINITY
Bibliography: Textbook - Complete Physics Singapore Edition Publisher - Oxford University Press Year - 2000 Author - Stephen Pople Textbook - Explaining Physics GCSE Edition Publisher - Oxford University Press Year - 1995 Author - Stephen Pople Website - www.wikipedia.com Encyclopedia - Microsoft Encarta Encyclopedia Deluxe 2004