Calculate the resistance of a negative temperature coefficient (NTC) thermistor in a greenhouse climate control system when the potential difference across it is 7.2 V and the current is 16 mA.
Use the equation:
R=VI R = \frac{V}{I} R=IV59 exam-style questions on Edexcel GCSE Physics 10.2 Resistance. Each one has a worked solution and a mark scheme showing where the marks go.