the total voltage across the end points is 5 V so, Vtotal = V(thermistor) + V(resistor) 5= 2 +Vr Vr= 3 Volt the current passing through the Resistor I= V/ R so I = 3/1050 I=1/350 A while the Resistor and thermistor are series the I(total) = I(thermistor) = I(resistor) = 1/350 A Voltage at the thermistor = 2V so r = V/ I then R(thermistor) = 700 ohm
