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How can I change the resistance of a wire?
Member rating: No Rating | Words: | Submitted: Fri Jan 16 2004
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How can I change the resistance of a wire? Introduction: Electricity is conducted through a wire, it moves using free electrons - the amount of free electrons depends on the type of wire, the more free electrons the more conductive the wire. Free electrons are what are called 'given energy' so they move and collide with other free electrons beside them. These collisions or 'jumps' as they are sometimes called; occur all the way down the wire, and this is how electricity is conducted. Each time they collide it converts some of the energy the free electrons have in to heat. And that is what RESISTANCE IS THE RESULT OF KENITIC ENERGY LOST AS HEAT. Ohms law is also quite important to this; in 1826, George Ohm discovered that: the current flowing through a metal wire is proportional to the potential difference across it (providing the temperature remains constant). It...
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