Electronics - Voltage and Current - Discussion

Discussion Forum : Voltage and Current - General Questions (Q.No. 5)
5.
Which resistive component is designed to be temperature sensitive?
Thermistor
Rheostat
Potentiometer
Photoconductive cell
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
67 comments Page 1 of 7.

Shreedhar K S said:   6 years ago
ANSWER - Thermistor is right.

Yes, right @Yogesh & Ravikumar.

They asked only which is temperature based resistor, NTC and PTC both are temperature based thermistor resistors it may be an NTC or PTC.

Thermistors are two opposite fundamental types:

1) NTC- Negative Temperature Coefficient. If here temperature increases resistance decreases.

2) PTC- Positive Temperature Coefficient. If here temperature increases resistance also increases.
(1)

Rakesh yadav said:   9 years ago
Thermister is positive temperature coefficient. Its resistance varies with temperature.
(1)

Shruthi said:   1 decade ago
Thermistor has negative temperature coefficient.

Anjali said:   1 decade ago
Rheostat and potentiometer are almost the same. They are variable resistors whose value can be changed by us and does not depend on external parameters.

Photo conductive cells depend light. Similar to LDRs.

Sonukumar said:   1 decade ago
Thermistor is a special type of resistor thermal + resistor it is use to measure temperature.

Pradip said:   1 decade ago
If temperature increases, resistance value decreases hence it is negative temperature coefficient.

Naveen tewari said:   1 decade ago
Thermal + resistor = thermistor.

Here thermal indicate that resistor is temperature coefficient.

When temperature increase resistance decrease.

Logeshwaran said:   1 decade ago
Thermistor is temperature sensing device.

Sravani said:   1 decade ago
Note that the question is which one is designed to be sensitive to temperature. And it is thermistor. i.e. , it is designed with the motto to be temperature Sensitive.

However the others may have the sensitivity with temp in practical cases. But they not intendedly designed to be sensitive.

Thanga Mariappan said:   1 decade ago
Thermistor is a kind of resistor depends upon the coefficient it provides resistance.

1. PTC- if temperature is increased resistance also increases.

2. NTC- if temperature is increased resistance also decreases.


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