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Thermistor - GCSE Physics Definition

Reviewed by: Caroline Carroll

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A thermistor is a type of electrical component that changes its resistance with changes in temperature. Most thermistors are made from a material whose resistance decreases as the temperature increases, making it useful for measuring temperature. This means that at high temperatures, more current can flow as the resistance is low. Thermistors are often used in devices like fire alarms, digital thermometers, heating systems, and other gadgets that need to monitor temperature closely.

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Caroline Carroll

Reviewer: Caroline Carroll

Expertise: Physics & Chemistry Subject Lead

Caroline graduated from the University of Nottingham with a degree in Chemistry and Molecular Physics. She spent several years working as an Industrial Chemist in the automotive industry before retraining to teach. Caroline has over 12 years of experience teaching GCSE and A-level chemistry and physics. She is passionate about creating high-quality resources to help students achieve their full potential.

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