Statement - (A) : Thermistor can have only negative temperature coefficients of resistances.
Statement - (B) : Thermistors with negative temperature coefficients of resistance are used as resistance thermometers, to measure low temperatures of the order of 10 K.

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both A and B are false

A is true and B is false

A is false, but B is true

both A and B are true

answer is D.

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Detailed Solution

We know that thermistors can have both negative and positive temperature coefficients of resistances, but negative temperature will be used to measure low temperature in resistance thermometer and positive will be for higher.

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