3. The potential divider circuit below shows a 12.0V battery of negligible internal resistance containing an NTC thermistor. The voltmeter has infinite resistance. 12.0V 2000 A V a) The reading on the voltmeter is 3.3V. Calculate the resistance, Ry, of the thermistor The relationship between resistance and temperature of the thermistor is shown on the graph below. NTC Thermistor Resistance (2) 1000 800 800 700 600 500 400 300 200 100 0 0 20 20 40 60 80 100 120 140 160 180 200 Temperature (degrees celsius)
