Electronics and Communication Engineering - Materials and Components - Discussion

4. 

The temperature coefficient of a thermistor

[A]. is positive
[B]. is negative
[C]. zero
[D]. may be positive or negative depending on its composition

Answer: Option B

Explanation:

No answer description available for this question.

S.Sasikumar said: (May 13, 2015)  
The resistance decreases with increasing temperature, and the device is called a NTC.

Pratibha said: (Aug 9, 2016)  
A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors. The word is a portmanteau of thermal and resistor. Thermistors are widely used as inrush current limiter, temperature sensors (Negative Temperature Coefficient or NTC type typically), self-resetting overcurrent protectors, and self-regulating heating elements. (Positive Temperature Coefficient or PTC type typically).

Sonu said: (Oct 17, 2017)  
Answer should be: [D]. May be positive or negative depending on its composition.

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