A student investigates how the resistance of a thermistor varies with temperature. (a) The student sets up the circuit shown in Figure 2 to measure current and voltage. He finds that it does not work. Give three modifications that the student should make to the circuit so that the circuit works correctly.

Photo AI

A student investigates how the resistance of a thermistor varies with temperature - Edexcel - GCSE Physics: Combined Science - Question 2 - 2016 - Paper 1

Question 2

A student investigates how the resistance of a thermistor varies with temperature. (a) The student sets up the circuit shown in Figure 2 to measure current and volt... show full transcript

Worked Solution & Example Answer:A student investigates how the resistance of a thermistor varies with temperature - Edexcel - GCSE Physics: Combined Science - Question 2 - 2016 - Paper 1

Step 1

Connect ammeter in series (with thermistor)

96%

114 rated

Answer

The student should connect the ammeter in series with the thermistor to accurately measure the current flowing through it.

Step 2

Connect voltmeter in parallel (with thermistor)

99%

104 rated

Answer

The voltmeter should be connected in parallel to the thermistor to measure the voltage across it directly, ensuring accurate voltage readings.

Step 3

Reverse connections for one of the cells

96%

101 rated

Answer

The student needs to verify and possibly reverse the connections of one of the cells in the circuit to ensure proper functioning and correct direction of current flow.

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered