Electronics Fundamentals: Circuits, Devices & Applications
Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 21, Problem 1TFQ

A thermocouple can measure higher temperatures than a thermistor.

Expert Solution & Answer
Check Mark
To determine

To identify: If the given statement is True or False.

Answer to Problem 1TFQ

The given statement is True.

Explanation of Solution

Thermocouple is a device formed by joining two “dissimilar metals”. The basic principle is to apply heat to metals and a small “voltage” of the order of 100 mV or less is produced across their junction called See beck voltage. This is directly proportional to the temperature.They are basically used in industries since they have a wider temperature range and hence can measure very high temperatures.

But, a thermistor which works based on resistance-temperature relation;respond over a very narrow range of temperature of about 40°C to 160°C . They are usually employed for temperature monitoring applications like in thermostats, medical applications like high accuracy thermometers etc. These applications work on low temperatures compared to thermocouple.

Thus, the given statement is correct.

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Electronics Fundamentals: Circuits, Devices & Applications

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