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Investigation into how the resistance of a thermistor varies with temperature.
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TITLE: INVESTIGATION INTO HOW THE RESISTANCE OF A THERMISTOR VARIES WITH TEMPERATURE NAME: HELEN WRIGHT Planning Prediction I predict that as the temperature increases the resistance will decrease. I think this will happen because thermistors are made from a semiconductor material; at lower temperatures few electrons are able to take part in conduction. As temperatures increase more electrons are freed from atoms and are able to take part in conduction. Thus the resistance decreases. Method To test our prediction we will set up a circuit consisting of the following pieces of equipment: * Wires - to connect the circuit. * Beaker - to contain the water. * Water - to heat the thermistor. * Bunsen burner - to heat the water. * Tripod - to hold the beaker up above the bunion burner. * Gauze - to keep the beaker on the tripod. * Voltmeter - to measure the voltage through the cells. * Ammeter - to measure the current travelling through the...
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