Applications of Static Electricity electrostatic spray painting electrostatic precipitator electrostatic duster Applications of Static Electricity Conductor: an object that lets electrons move easily through it e.g. metal wire Applications of Static Electricity Conductor: an object that lets electrons move easily through it e.g. metal wire Insulator: a material that does not easily allow the movement of electrons through it e.g. plastic Applications of Static Electricity Grounding: connecting an object to a large body, like Earth, that is capable of removing any electric charge on the object grounding Applications of Static Electricity Grounding: connecting an object to a large body, like Earth, that is capable of removing any electric charge on the object Negative object: excess electrons flow from the object to the Earth until it is neutral Applications of Static Electricity Grounding: connecting an object to a large body, like Earth, that is capable of removing any electric charge on the object Negative object: excess electrons flow from the object to the Earth until it is neutral Positive object: electrons flow from the Earth to the object until it is neutral Applications of Static Electricity Electrostatic Spray Painting: positively charge the object and negatively charge the paint particles Applications of Static Electricity Electrostatic Spray Painting: positively charge the object and negatively charge the paint particles opposite charges attract Applications of Static Electricity Electrostatic Spray Painting: positively charge the object and negatively charge the paint particles opposite charges attract -paint particles are attracted to the object and less is lost as over spray Applications of Static Electricity Electrostatic Duster: rubbing the duster across a surface causes the duster to become charged by friction. Applications of Static Electricity Electrostatic Duster: rubbing the duster across a surface causes the duster to become charged by friction. charged objects attract neutral objects Applications of Static Electricity Electrostatic Duster: rubbing the duster across a surface causes the duster to become charged by friction. charged objects attract neutral objects -neutral dust particles stick to charged duster Applications of Static Electricity Electrostatic Precipitator: a device to remove dust particles from the exhaust gas from industry Applications of Static Electricity Electrostatic Precipitator: a device to remove dust particles from the exhaust gas from industry 1. smoke particles pick up a negative charge Applications of Static Electricity Electrostatic Precipitator: a device to remove dust particles from the exhaust gas from industry 1. smoke particles pick up a negative charge 2. charged particles are attracted to positive plates 3. clumps of smoke particles collect up on trays and are removed for disposal Applications of Static Electricity Photocopying: selenium is an insulator but becomes a conductor when exposed to light Applications of Static Electricity Applications of Static Electricity