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ES2- TA PRESENTATION.pdf

ES2- TA PRESENTATION.pdf - Experiment ES2 Electrostatic...

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Experiment ES2: Electrostatic Charge Distributions In this experiment you will accomplish the following tasks: 1) Make a series of measurements of charge density on an electrically neutral sphere placed close to another sphere at 3000 volts. 2) Make a series of measurements of charge density on an negatively charged sphere placed close to another sphere at 3000 volts. 3) Make a series of measurements of charge density on an positively charged sphere placed close to another sphere at 3000 volts. 4) Make a series of measurements of charge density on an positively charged sphere without the 3000 volt sphere nearby
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You have been told that like charges exert a force on each other that pushes these charges away from each other. You’ve also been told that opposite charges attract each other. If the hypothesis is that charges behave as described above, how could we test this? One way would be to bring charged objects near to each other and measure the forces on them-this is not an easy thing to accomplish. Another way is to allow charges to move under the influence of other charges and see where they end up.
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Since charges can move freely around a conductor, we could put a conductor near a source of charge with a known sign and observe where the charges move to on the first conductor. In this way we can see if like charges repel and opposite charges attract.
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