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How can you affect the resistance of a wire?
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Emma Knight Physics coursework How can you affect the resistance of a wire? The task is to investigate how you can affect the resistance of a piece of wire. I have chosen to investigate how the length of the wire affects the resistance. In theory the longer the wire the greater the resistance caused. I have decided to discover if this theory is correct and what causes this to happen. To understand resistance I must understand what the current is. The current is the flow of electrons. The electrons flow from negative to positive. They are repelled from the negative side of the battery and are attracted to the positive side. To be able to reach the other side they must flow around the circuit. We know that wire has a certain amount of resistance to the current. Though I could have chosen to use the temperature or the thickness of the wire as...
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