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Consider the Wheatstone bridge circuit in Fig. 6. Note the resistance in the lower- right branch of the circuit is a thermistor. The thermistor that you will use is designed to have a resistance of 2200 2 at 25°C (a Vishay Type NTCLE100E3222HBO device). This is the circuit that you will use to estimate a variety of temperatures. Using your value for R3 and the other component values given in Fig. 6, obtain an expression for Vab in terms of Rth. Then, rearrange this equation to express Rth in terms of Vab. You will use this to calculate Rth and and look up the corresponding temperature using the graph in Appendix B. 15 V + 2200 22 R3 Vab 1000 £2 Rth Thermistor Fig. 6. Analyze this Wheatstone bridge circuit

Consider the Wheatstone bridge circuit in Fig. 6. Note the resistance in the lower- right branch of the circuit is a thermistor. The thermistor that you will use is designed to have a resistance of 2200 2 at 25°C (a Vishay Type NTCLE100E3222HBO device). This is the circuit that you will use to estimate a variety of temperatures. Using your value for R3 and the other component values given in Fig. 6, obtain an expression for Vab in terms of Rth. Then, rearrange this equation to express Rth in terms of Vab. You will use this to calculate Rth and and look up the corresponding temperature using the graph in Appendix B. 15 V + 2200 22 R3 Vab 1000 £2 Rth Thermistor Fig. 6. Analyze this Wheatstone bridge circuit

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Consider the Wheatstone bridge circuit in Fig. 6. Note the resistance in the lower- right branch of the circuit is a thermistor. The thermistor that you will use is designed to have a resistance of 2200 2 at 25°C (a Vishay Type NTCLE100E3222HBO device). This is the circuit that you will use to estimate a variety of temperatures. Using your value for R3 and the other component values given in Fig. 6, obtain an expression for Vab in terms of Rth. Then, rearrange this equation to express Rth in terms of Vab. You will use this to calculate Rth and and look up the corresponding temperature using the graph in Appendix B. 15 V + 2200 22 R3 Vab 1000 £2 Rth Thermistor Fig. 6. Analyze this Wheatstone bridge circuit
Transcribed Image Text:Consider the Wheatstone bridge circuit in Fig. 6. Note the resistance in the lower- right branch of the circuit is a thermistor. The thermistor that you will use is designed to have a resistance of 2200 2 at 25°C (a Vishay Type NTCLE100E3222HBO device). This is the circuit that you will use to estimate a variety of temperatures. Using your value for R3 and the other component values given in Fig. 6, obtain an expression for Vab in terms of Rth. Then, rearrange this equation to express Rth in terms of Vab. You will use this to calculate Rth and and look up the corresponding temperature using the graph in Appendix B. 15 V + 2200 22 R3 Vab 1000 £2 Rth Thermistor Fig. 6. Analyze this Wheatstone bridge circuit
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