'Physics ISA Thermistor generalised Paper 1 guide Essay\r'

'1. My hypothesis is that the enemy decreases as the temperature increases. I predict my results allow have a negative correlation, and that as the temperature\r\n2. http://www.gcsescience rules.co.uk/2014/05/thermistor-resistance-dependent-on.html http://www.nuffieldfoundation.org/practical-physics/effect-temperature-thermistor\r\nThe first method contained a risk assessment as well as a choice of two methods, genius with a digital multimeter as well as one with a power supply and an ammeter. The second method has an explanation as to how a thermistor works, simply I chose the first method becaexercising it had a multimeter method, which is easier than victimization a power supply and an ammeter, as it reads resistance directly in Ohms.\r\n3. The equipment I go forth use is an NTC Thermistor, Hot Water (200ml), Cold Water (200ml), Beaker (500ml), Thermometer (0-100c), digital Multimeter, and Connecting leads. You will need to boil water (at to the lowest degree(prenominal) 20 0ml) and put it in a beaker of at least 250ml, and consequentlyce the same with normal water. You will thence need to use connecting leads to connect the digital multimeter to the thermistor. You will need to turn the multimeter on, and set it to read Ohms, which is the unit for Resistance (Pd/current).\r\nYou will then pour the het water in the 500ml beaker, and immerse the thermistor into the 500ml beaker. You will then wait until the hot water reaches 70c, and then measure the resistance in Ohms. You will then repeat the experiment, to increase accuracy and to spot anomalies that king affect your final results. You will take a mean by adding up both results and dividing them by two.\r\n'