1.1. A student is investigating the variation of resistance and temperature in a thermistor. The diagram shows part of the circuit the student intends to use.

Complete the circuit diagram to show how the student should connect the apparatus, including a voltmeter and an ammeter.

1.2. The student chooses a fixed resistor with a resistance of 5 kΩ. The reading on the ammeter is 0.8 mA. 

(i) State the equation linking voltage, current and resistance.

(1)

(ii) Calculate the voltage across the 5 kΩ resistor.

(2)

 Voltage = ............................... V

1.3. The manufacturer's guide states that the thermistor has a resistance of 12 kΩ at room temperature.

The student wants to confirm the accuracy of this value before starting the investigation.

At room temperature, the voltmeter shows a reading of 8 V. 

Determine if this reading is consistent with the manufacturer's value of resistance.