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Comparing and improving two rainfall gauge experiments.
Member rating: No Rating | Words: | Submitted: Tue Oct 07 2003
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AS Physics Practical; Comparing and improving two rainfall gauge experiments The aim of this experiment is to test and improve an existing rainfall measuring experiment using a potential divider. I have done this by modifying the equipment I use; this has given me a better resolution and more linear results. Apparatus For the first unimproved experiment * 5 volt Dc power supply * Rotary potentiometer * Float * Voltmeter * Beaker * Metal rods * Blue tack * Clamp stand * Ruler For the second experiment; * 5 volt DC power supply * Rotary potentiometer * Clamp stand * Arm with joint * Volt meter * Beaker * Float * Ruler Safety If the water is spilt then it must be mopped up. The beaker might break if it falls on the floor therefore all equipment must be kept away from the edge of the table. The rotary potential divider must be secured in a clamp stand. This must be held tightly so that it will not fall on the table...
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