With a change in temperature, a thermistor will change:

With a change in temperature, a thermistor will change:

• A. Resistance increases
• B. Resistance decreases
• C. Resistance remains constant
• D. Resistance

Answer: (D)

A thermistor is designed to be temperature‑sensitive, so its resistance changes as temperature changes. The semiconductor material in a thermistor responds to temperature by altering the number of charge carriers, which makes resistance shift. There are two common types: NTC thermistors, where resistance falls as temperature rises, and PTC thermistors, where resistance rises as temperature rises. Because its defining property is that the resistance is not fixed but varies with temperature, the correct statement is that resistance changes with a change in temperature. If you need to know the direction, identify the type: NTC decreases resistance with higher temperature, while PTC increases resistance with higher temperature.

A thermistor is designed to be temperature‑sensitive, so its resistance changes as temperature changes. The semiconductor material in a thermistor responds to temperature by altering the number of charge carriers, which makes resistance shift. There are two common types: NTC thermistors, where resistance falls as temperature rises, and PTC thermistors, where resistance rises as temperature rises. Because its defining property is that the resistance is not fixed but varies with temperature, the correct statement is that resistance changes with a change in temperature. If you need to know the direction, identify the type: NTC decreases resistance with higher temperature, while PTC increases resistance with higher temperature.