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IS IT POSSIBLE TO MEASURE HEIGHT WITH A ROTARY POTENTIOMETER APPARATUS (decided upon after trial and improvement as recounted below) BATTERY PACK ROTARY POTENTIOMETER VOLTMETER TWO LEADS WITH CONNECTORS LASER POINTER MEASURING TAPE SAFETY 1) The laser pointer must never be shone directly into anybody's eyes. 2) The experiment must be carried out with utmost caution and care must be taken to avoid injury to anyone. 3) The experiment must be carried out carefully in an organised manner. 4) Care must be taken with leads and the positioning of the equipment so as to avoid tripping people. AIM The aim of this project was to design and build a sensor that would measure the height of buildings, pillars etc. I used a rotary potentiometer set up in a circuit with a voltmeter and a power source. BRIEF INTRODUCTION TO THE MAIN COMPONENT PRELEMINARY EXPERIMENT I connected the rotary potentiometer to a battery pack as shown below and increased the angle of rotation. I immediately noticed a...

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