
Monday, October 6, 2008
electric current
For the past couple of weeks, we have been learning about electric currents. Thinking for a topic to write for this journal, I thought about a question that we had on a worksheet which asks if a thicker wire is better for charge to flow than a smaller wire. As I thought of things we use daily around the house that has to do with electric current, I thought of my washing machine and dryer. My family uses them everyday washing clothes and I thought to myself, "Ho.. the washing machine and dryer must require a lot of power and electricity in order for them to function." I was right. My dad and I pushed the washing machine and dryer out in order to see the back where all the wires are. What did we see? We saw very thick wires connecting the washing machine and dryer to the outlet. I was suprised at how big the wires were. Just as we learned, it is easier for the charge to travel through a thicker wire than a smaller thinner wire. That way, more charge can flow through, giving the machines the electricity they need to function. When you think about it, it is true that objects which requre a lot of electricity have thicker wires than objects that do not require as much electricity to function.

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1 comment:
great pictures. btw, not only are the wires much thicker (exactly for the reasons you explained), but the voltage difference is 220 volts, not the standard 110/120 volts.
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