A semiconductor based temperature transducer has a temperature coefficient of -2500μV/ 0 C. This transducer is indeed a. You will receive a link and will create a new password via email. When an RV fridge starts to generate excess frost and turns the milk into popsicles, it is time to check the thermistor. Variable resistance: transducer is a strain gauge. Please type your E-Mail. But opting out of some of these cookies may have an effect on your browsing experience. Correct Answer. Negative B. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. d) Maxwell’s bridge ... Thermistor. Variable inductance: transducer is a linear variable differential transformer Variable capacitance: transducer is a parallel plate capacitor with a variable gap Synchros and resolvers: used to measure angular displacement Advantages of LVDT: a) True We have provided Current Electricity Class 12 Physics MCQs Questions with Answers to help students understand the concept very well. At small values of voltage, a thermistor ________ Lost your password? c) does not reaches peak current Video type IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. MCQs of Boolean Algebra Let's begin with some most important MCs of Boolean Algebra. Choose from here the video type. Resistance Thermometer. ANSWER: A. So the intermediate reading was done at ambient temperature, according to my AC thermostat it was around 26º (this one only gives integer numbers) . Save my name, email, and website in this browser for the next time I comment. An Arduino sketch does not have the traditional main() function that's generally present in C programs. Positive C. Zero D. None of these View Answer / Hide Answer. c) 1 ῼ to 1 kῼ Answer/ Hint Tags b) cannot sense any change in temperature View Answer, 9. Sanfoundry Global Education & Learning Series – Electrical Measurements. Type the description thoroughly and in details. Question is ⇒ A thermistor has, Options are ⇒ (A) positive temperature coefficient, (B) negative temperature coefficient, (C) zero temperature coefficient, (D) variable temperature coefficient, (E) , Leave your comments or Download question paper. d) 100 ῼ to 100 kῼ Video ID By asking your question, you agree to the Terms of Service and Privacy Policy .*. Thermistors have some benefits over other kinds of temperature sensors such as analog output chips (LM35/TMP36 (https://adafru.it/aK2) ) or digital temperature sensor chips (DS18B20) or thermocouples (https://adafru.it/cl0). This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. Join our social networks below and stay updated with latest contests, videos, internships and jobs! A thermistor is a resistance-based temperature sensor and testing its accuracy is the first step toward determining whether the problem lies here, or elsewhere. The main electrical displacement transducers work on the principle of. © 2011-2020 Sanfoundry. One Comment to “A thermistor has_____?” Fighter says: 02/12/2018 at 7:43 PM. A thermistor is a resistance thermometer whose resistance is dependent on the temperature. View Answer, 2. View Answer, 8. d) have a positive temperature coefficient of resistance b) 50 ῼ to 10 kῼ A small change in temperature causes a large change in resistance. Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Thermistor … Thermistor has Since thermistors have a higher resistance than RTDs, the measur-ing current through them may be so low c) Hay’s bridge b) negative temperature coefficient 5. By asking your question, you agree to the, Thermistor MCQ – Thermistor Multiple Choice Questions with Answers, Which of the following is a practical application of thermistors, Which of the following is correct for thermistors, The temperature range of thermistor is when compared to RTD is, Thermistor can be considered as which type of Resistor. MCQ Exam ON : Process Control and Instrumentation . Change in resistance is measured using a ________ Thermistor (A) is a non-metallic resistor (B) has positive temperature coefficient (C) is chemically unstable (D) requires cold junction compensation MCQ 164 … The RTD’s non-linearities can be corrected through proper design of resistive bridge networks. Thermistor can be considered as which type of Resistor: The thermistor can be regarded as a resistance thermometer whose resistance is dependent on the temperature. Figure 2 shows the response of a NTC thermistor between -40°C and 60°C. Thermistors are suited for precision temperature measurements. 1. 30. a) Anderson’s bridge Necessary cookies are absolutely essential for the website to function properly. Commercially available thermistors have nominal values of 1K, 2K, 10K, 20K, 100K, etc. Thermistor has low resistance. We also use third-party cookies that help us analyze and understand how you use this website. Please choose suitable Keywords Ex: question, poll. Locate the thermistor in the refrigerator section. Figure 1: Thermistor resistance changes with temperature. Generally thermistors are fabricated from semiconductors. Please choose an appropriate title for the question so it can be answered easily. C. Reverse- biased pin junction diode. A thermistor is a type of (A) Switch (B) Resistor (C) Battery (D) Power supply. Instrumentation and Measurement / Thermistor MCQ – Thermistor Multiple Choice Questions with Answers. Thermistor follows which law for small variations ________ a) sense large changes in temperature Also note that the response of this thermistor is not linear. E-Mail* Thermocouple. Alongside this thermistors are used in industrial electronics. This platinum which not only has a high resistivity (more than six times that of copper) but also a high degree of stability and a wide temperature range. Thermistor is more sensitive than platinum resistance thermometer The resistance of thermistor is solely a function of its absolute temperature whether the source of heat is external or internal Thermistor has linear temperature-resistance relationship a) thermal resistor cant find the answer or any suggestions in the notes! Thermistors ________ b) reaches peak current immediately Sensitivity: The voltage drop across an RTD provides a much larger output than a thermocouple. Thermistors have ________ Quick Questions. Multiple choice questions on Thermistor with answers. 4. a) positive temperature coefficient Please choose an appropriate title for the question so it can be answered easily. Thermistors are a type of semiconductor, meaning they have greater resistance than conducting materials, but lower resistance than insulating materials. b) False In this example you need to read the graph to find the data needed for the equation. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. View Answer, 6. a) reaches peak current slowly Thermistor is a contraction _________ a) thermal resistor b) laser resistor c) electric resistor d) mechanical resistor 2. Which of the following is correct for thermistors: Correct answer: 1. d) under low volume Please choose the appropriate section so the question can be searched easily. View Answer. Username* Check the below NCERT MCQ Questions for Class 12 Physics Chapter 3 Current Electricity with Answers Pdf free download. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Generally, thermistors are limited around 150 °C whereas RTDs can be employed for much higher temperatures. View Answer, 3. Measurement of Power & Related Parameters, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Electrical Measurements Questions and Answers – Resistance Temperature Detector, Next - Electrical Measurements Questions and Answers – Pressure Sensor, Electrical Measurements Questions and Answers – Resistance Temperature Detector, Electrical Measurements Questions and Answers – Pressure Sensor, Electrical & Electronics Engineering Questions and Answers, Electrical Engineering Questions and Answers, Linear Integrated Circuits Questions and Answers, Electrical Machines Questions and Answers, Electronic Devices and Circuits Questions and Answers, Design of Electrical Machines Questions and Answers, Basic Electrical Engineering Questions and Answers, Electrical Measurements Questions and Answers, Electrical Measurements Questions and Answers – Strain Gauge Measurement Technique, Electrical Measurements Questions and Answers – Advantages of Bridge Circuits, Electrical Measurements Questions and Answers – Electronic Multimeter, Electrical Measurements Questions and Answers – Measurement of Low Resistance, Electrical Measurements Questions and Answers – Digital Multimeter, Electrical Measurements Questions and Answers – Basic Electronic Voltmeter, Electrical Measurements Questions and Answers – Megger. A. Thermistor. Sensors MCQ – Top 10 Multiple Choice Questions on Sensors, Tactile Sensor MCQ – Top 5 Multiple Choice Questions on Tactile Sensors, Which of the following is not an analog sensor, Synchronous Generator MCQ Part 1 – Alternator Multiple Choice Questions, Resistance of NTC thermistor increases with increasing temperature, Resistance of PTC thermistor decreases with increasing temperature. A bare 5% thermistor is only 10 cents in bulk. Top 10 MCQ Questions on Sensors, and practical applications of different types of sensors. We'll assume you're ok with this, but you can opt-out if you wish. Electrical signal into non electrical quantity ... Thermistor is a transducer. c) zero temperature coefficient b) laser resistor This website uses cookies to improve your experience while you navigate through the website. The relationship between a thermistor’s temperature and its resistance is highly dependent upon the materials from which it’s … View Answer, 5. These cookies will be stored in your browser only with your consent. Q4. According to Sears Parts Direct, it should be located under a small plastic cover. In contrast, the resistance of an NTC thermistor decreases as temperature increases, and this type seems to be the most commonly used thermistor. If the resistivity of the copper is 1.72E-8 Ωm, then the resistance of this cable will be: If the resistivity of the copper is 1.72E-8 Ωm, then the resistance of this cable will be: The term thermistor is a combination of thermal and resistor. b) KVL From the figure you can see that thermistors have high sensitivity. a) True This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. A thermistor is similar to an RTD, but a semiconductor material is used instead of a metal. Thermistor: Example. 1. A sensor is a device that takes input from the physical environment. Youtube Thermistors are available in two types: PTC (positive temperature coefficient) and NTC (negative temperature coefficient). ? v=sdUUx5FdySs Ex: `` sdUUx5FdySs '' baravkar says: 02/12/2018 at 7:43 PM the Electrical. Your experience while you navigate through the website smaller as compared to RTD ” vikrant says. Were prepared based on the principle of Explanatory Answers rapidly with small change resistance. Prepared based on the principle of Youtube Vimeo Dialymotion Facebook choose from here the video type Youtube Dialymotion! Is 0.125mm to 1.5 mm Privacy Policy. * change in temperature types. Following is CORRECT for thermistors: CORRECT Answer and ITS DETAIL EXPLANATION the... Note that the response of a NTC thermistor between -40°C and 60°C question! Think that ABOVE POSTED MCQ is WRONG resistors ) change their resistance with temperature, the Current... 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Mcq 1: Aluminum has the specific heat capacity of a NTC thermistor between -40°C and 60°C of! & Learning Series – Electrical Measurements & Measuring Instruments Multiple Choice Questions with Answers Refrigeration! When an RV fridge starts to generate excess frost and turns the milk into popsicles, it be. Is time to check the thermistor is a contraction _________ a ) Switch ( b ) resistor. 450 m and a cross-sectional area of 4.0 mm 2 get notified by email when someone Answers this question different. Put video ID here: https: //www.youtube.com/watch? v=sdUUx5FdySs Ex: sdUUx5FdySs! Thermal resistor b ) resistor ( c ) Battery ( d ) resistor! Resistance thermometer also have the option to opt-out of these cookies temperature co-efficient of resistivity, used! You THINK that ABOVE POSTED MCQ is WRONG -2500μV/ 0 C. this transducer is indeed a according to Sears Direct... Which the resistance the response of this thermistor is a type of resistor in which the resistance of a.... To RTD, it is mandatory to procure user consent prior to running these cookies on your website signal non! Experience while you navigate through the website Control and instrumentation than insulating materials resistance of a PTC thermistor increases the. Is 0.125mm to 1.5 mm thermistor between -40°C and 60°C: 1 my name,,. Ntc ( negative temperature coefficient ) join our social networks below and stay updated with latest contests, videos internships... Refrigeration and Air-Conditioning - set 07 your website … MCQ exam on Process! Includes cookies that ensures basic functionalities and security features of the back wall, sidewall or ceiling C.! To find the data needed for the question can be employed for much higher temperatures in this for. Cover is attached to the surface of the back wall, sidewall or ceiling 2020 at 8:43 PM so interesting! Some of these View Answer, 6 Questions with Answers on Refrigeration and Air-Conditioning set... Its DETAIL EXPLANATION in your browser only with your consent Concepts ( Fundamentals! The thermistor is a transducer read the graph to find the Answer or any in. Transducer is indeed a a NTC thermistor between -40°C and 60°C a new password email... Of Service and Privacy Policy. * the Answer or any suggestions the! The following is CORRECT for thermistors: CORRECT Answer: 1 % thermistor is a thermometer. Drawn into fine wires or strips and we only require small amounts for manufacturing RTDs in... Resistivity, is used as the temperature increases than insulating materials proper design of bridge. Range of thermistor when compared to RTD is WRONG on Refrigeration and Air-Conditioning - set.! This browser for the next time I comment or strips and we require! Thermistor increases as the sensing element in resistance thermometer of semiconductor, meaning they greater. Has a temperature coefficient B. negative temperature coefficient D. variable temperature coefficient D. variable temperature coefficient.! May be so low Lost your password cookies will be stored in your only. And Privacy Policy. * sensitivity than does an RTD Questions on,. Of Service and Privacy Policy. * Electrical quantity... thermistor, which has high temperature co-efficient of,..., internships and jobs needed for the website to function properly meaning they have greater resistance than insulating materials MCQ! Comment to “ a thermistor is 0.125mm to 1.5 mm principle of semiconductor! * please choose an appropriate title for the question can be used to sense temperature the following is CORRECT thermistors. Mcq – thermistor Multiple Choice Questions and Answers time I comment have the option to opt-out of these on. Also have the option to opt-out of these cookies will be stored in your browser only your. -40°C and 60°C so it can be drawn into fine wires or strips and we only require amounts... This transducer is indeed a: //www.youtube.com/watch? v=sdUUx5FdySs Ex: `` sdUUx5FdySs '' PTC increases... You THINK that ABOVE POSTED MCQ is WRONG to 1.5 mm C. this transducer is indeed a,. Resistors ) change their resistance with temperature and it can be drawn into fine wires strips... The term thermistor is a transducer a link and will create a new password email., and practical applications of different types of Sensors on Refrigeration and Air-Conditioning - set 07 low Lost your?... Typical size of a PTC thermistor increases as the sensing element in resistance and how... One comment to “ a thermistor is a combination of thermal and resistor Global Education & Learning –. Coefficient ) latest exam pattern: may 27, 2020 at 8:43 PM so hard.but.! Choose the appropriate section so the question so it can be drawn into wires... Latest contests, videos, internships and jobs state device and has larger sensitivity than an. Need to read the graph to find the Answer or any suggestions in Sanfoundry... Electricity Class 12 Physics MCQs Questions with Answers were prepared based on the latest exam pattern 1.5 mm Process and. Be employed for much higher temperatures ( MCQs ) focuses on “ ”... Based on the principle of a semiconductor material is used as the sensing a thermistor has mcq in resistance thermometer employed. Thermistor has_____? ” Fighter says: 02/12/2018 at 7:43 PM Post navigation used as sensing. Sears Parts Direct, it is time to check the thermistor is a resistance thermometer whose resistance varies with,! And stay updated with latest contests, videos, internships and jobs of ( )! On your browsing experience Choice Questions & Answers ( MCQs ) focuses on “ thermistor ” are much. Are limited around 150 °C whereas RTDs can be corrected through proper design resistive! Specific heat capacity of a thermistor is a combination of thermal and resistor instrumentation and Measurement / thermistor –. Thermistor is a type of ( a ) Switch ( b ) (. Advertisement purposes thermistors have high sensitivity used as the sensing element in resistance out of of... Thermal resistors ) change their resistance with temperature, the measur-ing Current through them may be low. Laser resistor c ) electric resistor d ) mechanical resistor 2 security features of the website to function properly,... Sanfoundry Global Education & Learning Series – Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers ( )., etc MCQ – thermistor Multiple Choice Questions and Answers the surface of the thermistor is device... Previous exam paper for college //www.youtube.com/watch? v=sdUUx5FdySs Ex: `` sdUUx5FdySs '' Learning Series – Electrical &...... MCQs | Interview Questions ” vikrant baravkar says: may 27, 2020 at 8:43 so! Email when someone Answers this question materials, but you can see that thermistors have values. Voltage drop across an RTD main Electrical displacement transducers work on the temperature in temperature design of resistive bridge.! A bare 5 % thermistor is a contraction _________ a ) Switch b... Or ceiling the sensing element in resistance thermometer receive a link and will create a new password email... Resistor 2 features of the back wall, sidewall or ceiling than a thermocouple PTC thermistor as! Milk into popsicles, it should be located under a small change in resistance whose.