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Consider the following statements regarding Thermistor 1. It has a high sensitivity 2. It has a linear relationship with temperature  3. It is a resistive device. 4. It can be used as a time-delay device. Which of the above statements are correct ?

Consider the following statements regarding Thermistor 1. It has a high sensitivity 2. It has a linear relationship with temperature  3. It is a resistive device. 4. It can be used as a time-delay device. Which of the above statements are correct ? Correct Answer 1, 3 and 4 only

1. Thermistor is used for the measurement of temperature

2. It is a kind of resistor whose resistivity depends on surrounding temperature

3. It is made of semiconductor material that means its resistance lies between the conductor and the insulator

4. A thermistor is highly sensitive as compared with a platinum resistance thermometer

5. The resistance of a thermistor is solely a function of its absolute temperature irrespective of the source of heat. Thermistors doesn’t have linear resistance temperature characteristics. 

6. Most thermistors exhibit negative resistance temperature co-efficient. 

7. The response time of a thermistor can vary from a fraction of a second to minutes, depending on the size of the detecting mass and capacity of the thermistor. 

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