The temperature being sensed by a negetive temperature coefficient (NTC) type thermistor is linearly increasing. Its resistance will

exponentially decrease with temperature.

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linearly increase with resistance.

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linearly decrease with temperature.

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exponentially increase with temperature.

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Solution

The correct option is A exponentially decrease with temperature.
For thermister,

$R_{1} = R_{0} e^{β ⎡ ⎣ \frac{1}{T_{1}} - \frac{1}{T_{0}} ⎤ ⎦}$

so, as temperature varies linearly, resistance decreases exponentially.

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