Maggie's Page

Two-Page Paper

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The generator that I researched is more of a generator system made up of the Van de Graaff generator which is basically those ball generators that are powered by static electricity and a motor like the one we talked about in class.
The motor moves the rubber band round and round. This makes the rubber band loop over the glass tube which makes it steal some of the electrons from the glass. Since the rubber band is much bigger than the glass tube, so the electrons taken from it go all over the rubber band. Since the glass tube is so small, the electrons which are spread over the rubber band give off a very weak charge.

This leaves a lot of positive chargers all over the glass tube. The high concentration of positive charges on the glass, which attracts it to the electrons to the wire on the top of the brush, a brushes hook the battery to the commuter, there are two brushes on every motor. The electrons spread out from the brushes points, which in turn change the air, and the air is repelled from the wire, which then is attracted to the glass. But since the rubber band is in the way the charged air can’t get to the glass, so the charged molecules hit the rubber band, which transfers the electrons on to it.

The electrons that are now in the rubber of the rubber band push on the wire on the bottom of the brush. The electrons are then pushed out from the wire and on to whatever large object or person is touch it. That is why when you touch the generator at like a science museum or something you hair sticks up. The points at the bottom of the brush is now positive, which make them pull and electrons out of the air that might be touching them. The positively charged particles of air are now repelled by the wire because they are both positive charged. So now the air molecules are attracted to the negatively charged rubber band because it is the only negatively charged thing in the vicinity. So when the air molecules hit the rubber the air molecules get their negative charge back. So the rubber band and the air both lose their charge so they become null. Since the rubber band is no longer charged it is ready to steal more electrons from the glass tube mentioned earlier.

Before I was talking about the brush on the bottom so now I will talk about the ones on the top. The brush on the top which is positively charged because the other brush is negatively charged is connected to a soda can. The brush is attracted to the electrons on the can, the positive charges from the brush repel from each other because only opposite attract and the same charge will not attract. The positive charges gather on the outside of the can, which leave neural or null atom on the inside of the can because the positive and negative charges have attracted and become combined. This makes the electrons from the soda can go into the ground, using the rubber band as a conveyer belt. Since almost all of the soda can’s electrons are going into the ground, the can become more positive then the ground. This happens when it reaches 12,000 volts. When the can get this positive, it has enough charge to take electrons from the air that are touching it. It happens the most concentrated on point parts or imperfections in the can. The can would give off a higher voltage it the can were a perfect sphere. The finished generator can make sparks or air oonizes that are about half an inch long, so the generator can produce about 12,500 volts. I am not completely sure how I will get from 12,000 volts to 9 volts. Maybe I can use an adapter or something that coverts certain voltages into other voltages.

The websites that were helpful with this paper were http://amasci.com/emotor/emot1.html which lead me to the find research on the Van de Graaff generator which I found information on this page http://scitoys.com/scitoys/scitoys/electro/electro6.htm.

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