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Find out how temperature affects resistance.
Member rating: No Rating | Words: | Submitted: Mon Feb 02 2004
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Resistance Aim My aim in this experiment is to find out how temperature affects resistance. Prediction I predict that as the temperature rises the resistance of the copper wire will increase. This is because as the temperature increases the electrons in the wire gain more energy and vibrate more and have more chance of head on collisions. From reading an A level physics book I can predict that as the electrons move down the wire they collide with the positive ions of the lattice. If the temperature increases the electrons will have more energy and there will be more head on collisions with the positive ions on the lattice passing energy down the wire quicker. If the temperature of the copper wire is increased the amplitudes of vibration of the lattice ions will increase and therefore the ions increase and therefore the lattice ions present a larger collision cross-section to the electrons. As a...
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