How electrostatics influence our lives

1353 WordsOct 19, 20076 Pages
PHYSICS ESSAY 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…show more content…
When lightning (electricity) produced touches the rod, the metal rod (being a good conductor) conducts all the electricity and becomes charged. However the current keeps flowing and is grounded and neutralized. STATIC MATS: The main principal behind this is using the fact that air becomes negatively charged and as foot traffic or wheels pass over the surface of the mat (which is positively charged) the dirt is attracted to the mat and so it controls the cleanliness of the surroundings. PHOTOCOPIERS: A photocopy machine is one of the greatest inventions of man. It allows us to duplicate any piece of paper. This is how electrostatics is used to photocopy papers. Firstly positive charge is sprayed onto the plate from a high voltage power supply. Paper is then placed through the plate and a light is shone through it. Where the paper is white, light passes though, where the paper is dark, a shadow is formed. The light falling on the white part just gives it the extra energy needed to allow the charge to escape to the earth and get grounded and thus the negatively charged ink is attracted to the dark areas, which is still positively charged. Then this is dried and given out. PAINTING CAR PARTS: In this process to paint car parts, the spray nozzle of the paint is connected to a negatively charged electrode and the part is connected to the positive electrode. This is why the ink is attracted towards the part. This

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