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The varying of the resistance of nichrome wire depending on its length
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Physics Coursework The varying of the resistance of nichrome wire depending on its length Electric current flows when charged particles known as electrons move through a conductor. When the electrons move through a conductor they collide with the atoms of the material of the wire which then causes resistance. The longer a wire is, the more the resistance due to the electrons having to travel further with increased collisions due to increased amount of atoms. However, increasing the thickness of a wire decreases the resistance because the electrons can move about more freely as there is more space for them to manoeuvre around other atoms. Resistance is measured in ohms (), therefore the greater the number of ohms, the more the resistance. The name ohm is given due to the fact that in 1826 a German scientist named George Ohm discovered that 'the current flowing through a metal wire is proportional to...
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