electric current flow in wires
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Electric Current Flow in Wires
I am going to carry out an investigation to see what factors affect how well a wire will conduct electricity. I am going to investigate the affect of resistance. The resistance is when electrons travelling through a wire collide with the atoms of the wire causing many collisions which slows the flow of electrons which finally causes the resistance.
There are several factors that affect the resistance of a wire, the thickness, the length and what the wire is made out of. If the wire is thicker then there is more space for electrons to move, and there won't be many collisions with the atoms from the wire. The length will affect the resistance because the longer the wire the more the electrons will travel and the more collisions will occur therefore the resistance will increase. In my investigation I am going to see the affect of the length of the wire against the resistance.
I predict that when the length of the wire increases the resistance will increase. I think this will happen because as the wire increases in length, the electrons travel more which means more collisions will occur making an increase in resistance. I also think my graph will show that when you double the length, the resistance will also double showing positive correlation...