NTC thermistor

A temperature-sensitive resistor whose resistance decreases as its temperature increases. NTC means negative temperature coefficient.

A temperature-dependent resistor whose resistance decreases as its temperature increases. NTC means negative temperature coefficient.

An LDR and an NTC thermistor respond to their surroundings rather than being adjusted by a slider.

A temperature-sensitive resistor with a negative temperature coefficient: its resistance decreases as its temperature increases.

For an NTC thermistor or LDR investigation, limit heating caused by the measuring current so that it does not become an unwanted variable.

An NTC thermistor’s resistance decreases as temperature increases. This is the opposite of the temperature effect in a metal filament.

For a filament lamp, diode, NTC thermistor or LDR, a calculated resistance applies to the stated operating conditions; do not assume it stays constant.

A temperature-dependent resistor with a negative temperature coefficient: its resistance decreases as its temperature increases.

An NTC thermistor has a high resistance when cold and a lower resistance when hot. To investigate temperature, use it as the test component and place a controlled heater nearby, without touching it. Use a thermometer to record the temperature near the thermistor.

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OCR GCSE Combined Science A · J250

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OCR GCSE Combined Science B · J260