Answer question four 1. Draw a Schering's bridge with the following parameters and derive the equation fordetermining the unknown impedance. If R2-4002, R1=200 C1=100 uF, C3-150 µF,calculate for Zx. What type of load is Zx? Assume the frequency to be I kHz.2. The output of an LVDT is connected to a voltmeter through an amplifier of amplificationfactor 250. An output of 1 mV appears across the terminals of the LVDT when the coreis displaced through a distance of 0.1 mm. calculate (a) the sensitivity of the LVDT, (b)sensitivity of the whole set up.3. What is the difference between current and voltage standards of measurements?Question 51. The ohmmeter circuit in Figure 3-22 has E, = 1.5 V, R1 = 15 k2, Rm= 60 2, R2 = 60 .and meter FSD = 50 µA. Determine the ohmmeter scale reading at 0.5 FSD, anddetermine the new resistance value that R2 must be adjusted to when E, falls to 1.3 V.Also. Recalculate the value of R2 at 0.5 FSD when E, = 1.3 V.wwR.B RFigure 3-22 An adjustable resistor (R)connected in paraliel with the meter pro-vides an ohmmeter zero control. The ohm-meter tenninals are initially short-circuitedand the zero control is adjusted to give arero-ohms reading. This eliminates errorsdue to variations in the batery voltage.Zero-E,R V.control2. Determine the resistance measured at 0°C by a thermistor whose constant B-3000K, ifthe resistance at 25°C is1000 2.3. Discuss what would happen to the pointer of an indicating instrument when:i) Deflection torque is applies to an instrument that has no controlling torque,ii) No deflection torque is applied to an instrument that has controlling torque,iii) Deflection torque is applies to an instrument that has controlling torque but notdamping torque.

Answered: Image /qna-images/answer/89674dcf-7e53-4e7a-a0b7-1cc06d12aa76.jpg

1. Draw a Schering's bridge with the following parameters and derive the equation for determining the unknown impedance. If R2-4002, R1-200 nC1=100 µF, C3=150 µF, calculate for Zx. What type of load is Zx? Assume the frequency to be 1 kHz 2. The output of an LVDT is connected to a voltmeter through an amplifier of amplification factor 250. An output of 1 mV appears across the terminals of the LVDT when the core is displaced through a distance of 0.1 mm. calculate (a) the sensitivity of the LVDT, (b) sensitivity of the whole set up. 3. What is the difference between current and voltage standards of measurements?

1. Draw a Schering's bridge with the following parameters and derive the equation for determining the unknown impedance. If R2-4002, R1-200 nC1=100 µF, C3=150 µF, calculate for Zx. What type of load is Zx? Assume the frequency to be 1 kHz 2. The output of an LVDT is connected to a voltmeter through an amplifier of amplification factor 250. An output of 1 mV appears across the terminals of the LVDT when the core is displaced through a distance of 0.1 mm. calculate (a) the sensitivity of the LVDT, (b) sensitivity of the whole set up. 3. What is the difference between current and voltage standards of measurements?

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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