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Physic's Investigation into the resistance of a brine soaked piece of paper, related to its surface area
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Carol Bhaskar 11HEA January 2002 Physic's Investigation into the resistance of a brine soaked piece of paper, related to its surface area Aim I aim to discover how length and cross-sectional area affect the resistance of brine soaked chromatography paper when an electrical current is passed through it. Predictions * Firstly I think that as the length decreases the resistance will decrease proportional. * Resistance is when current is slowed; this happens by the moving electrons (current) colliding with each other or any molecules and atoms they pass through. Through this the electrons lose some of their kinetic energy which changes into heat energy and thus resistance is created and the current slows. * My previous prediction is based on this theory. It is due to the fact that the shorter length of brine soaked paper, the less distance the current has to travel. This means that the free electrons have less distance and thus time...
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