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To Investigate how the thickness of a wire affects its Resistance.
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| Submitted: Sun Dec 15 2002
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Physic's Coursework Richard Carragher, S2D RESISTANCE AIM: To Investigate how the thickness of a wire affects its Resistance. Background Knowledge. The electrical supply can be quite easily compared to the water supply we all have in our homes for our heating. The battery can be easily compared to a water pump as they both have to push a flow around a circuit. A resistor can also easily be compared to a water flow constrictor, both slowing down the flow and power of the push. If the voltage is increased the current is increased. If you increase the resistance the current is decreased. CHARGE = CURRENT x TIME Q = I x T The current I with a value ampere, 1A is the number of charges flowing past a point every second. Charge Q is measured in Coulombs, C. Short Circuit: A short circuit happens when the current in a circuit travels along the easiest path it can find. The easiest path is...
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