A student investigates how the resistance of a thermistor varies with temperature - Edexcel - GCSE Physics - Question 5 - 2016 - Paper 1
Question 5
A student investigates how the resistance of a thermistor varies with temperature.
(a) The student sets up the circuit shown in Figure 5 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 - Question 5 - 2016 - Paper 1
Step 1
Modification 1: Ensure the Thermistor is Connected Correctly
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Answer
The thermistor must be correctly connected in the circuit so that it is part of the measuring loop. Make sure the connections are secure and that the thermistor is oriented properly.
Step 2
Modification 2: Replace the Power Supply with a Suitable Voltage Source
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Ensure the power supply provides the appropriate voltage needed for the circuit to operate. If the voltage is too low, the circuit may not function correctly.
Step 3
Modification 3: Add a Resistor for Current Limiting
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Answer
Include a resistor in series with the thermistor to limit the current flow and prevent damage to the thermistor or other components in the circuit.
