A wheatstone bridge is used to measure the temperature using a thermistor atthe resistor branch Rx. R1=R3 and R2 is adjustable by a potentiometer. Rx isthe resistance of the thermistor. At the room temperature of 300K, the bridgeis balanced (voltage over G=0) by setting R2 to 1kQ. If the material constantB for the thermistor is 3000, at the temperature of 400K what should be thenew R2 value to balance the bridge?AR,R3+DGВR2R,

Thermistor- Thermistor are the resistors in which it's resistance changes with change in the…

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» balance the bridge?"

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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Question

A wheatstone bridge is used to measure the temperature using a thermistor at
the resistor branch Rx. R1=R3 and R2 is adjustable by a potentiometer. Rx is
the resistance of the thermistor. At the room temperature of 300K, the bridge
is balanced (voltage over G=0) by setting R2 to 1kQ. If the material constant
B for the thermistor is 3000, at the temperature of 400K what should be the
new R2 value to balance the bridge?
A
R,
R3
+
D
G
В
R2
R,

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