Covers content from P2.3.2 AQA Electrical circuits.
Current–potential difference graphs are for LDR and Thermistors.
Pupils are lead to describe how the resistance of a thermistor and light dependent- resistor (LDR) depend upon the temperature and light level respectively and challenged to explain the changes that take place in a series circuit including a thermistor or an LDR when the temperature or the light level changes. Higher students are supported to explain resistance change in terms of Ions and Electrons.
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