A negative temperature coefficient (NTC) refers to materials that experience a decrease in electrical resistance when their temperature is raised. The lower the coefficient, the greater a decrease in electrical resistance for a given temperature increase. Carbon is having negative temperature coefficient.
9) Which material is having negative temperature coefficient ?
Answer is:
Carbon
Explanation:
![Which material is having negative temperature coefficient ?](https://mcqfinder.in/uploads/images/objective-questions/electrician-set-1-basic-electricity/electrician-set-1-basic-electricity-id-9-e.jpg)
Related Basic Electricity MCQ - Electrician (Set-1) with Answers
Answer is:
Mica
Explanation:
Mica is the example for negative temperature coefficient substance. Mica has negative temperature coefficient of resistance. So, resistance will decrease with increase in temperature.
![Which is the example for negative temperature coefficient substance ?](https://mcqfinder.in/uploads/images/objective-questions/electrician-set-1-basic-electricity/electrician-set-1-basic-electricity-id-10-e.jpg)
Answer is:
temperature coefficient of resistance
Answer is:
voltage
Answer is: