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ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL R₁ R₂ (measured) Rx (true value) Rx (computed) % Error 1 kQ 1 ΚΩ Rx₁ = Rx₂ = 1 kQ Rx 1 kQ Rx. 1 kQ Rxs = Table 4.1. Unknown Resistance Error Percentage Comparison C1 G Cx (true value) Cx (computed) % Error 47nF Cx₁ = 47nF Cx₂ = 47nF Cx3 = 47nF Cx. = 47nF Cxs= CS Scanned with CamScanner Table 4.2. Unknown Capacitance Error Percentage Comparison ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL C Rz E A Detector B R. Cx 8. As an alternative to galvanometer, connect an AC voltmeter between nodes A-B as the detector. 9. By adjusting R2, the bridge is balanced when the AC voltmeter reading is 0 V. 10. Measure the resistance of the adjusted potentiometer R2. Note down the values on Table 4.1. 11. Calculate the unknown resistance Rx unknown capacitance Cx using the formulas: R₁ = Cx- R₂ 12. Compare the computed unknown resistance Rx and Cx to its true value. Then, calculate for the percentage error using the formula: % Error = CS Scanned with CamScanner Measured Value True Value True Value x 100

ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL R₁ R₂ (measured) Rx (true value) Rx (computed) % Error 1 kQ 1 ΚΩ Rx₁ = Rx₂ = 1 kQ Rx 1 kQ Rx. 1 kQ Rxs = Table 4.1. Unknown Resistance Error Percentage Comparison C1 G Cx (true value) Cx (computed) % Error 47nF Cx₁ = 47nF Cx₂ = 47nF Cx3 = 47nF Cx. = 47nF Cxs= CS Scanned with CamScanner Table 4.2. Unknown Capacitance Error Percentage Comparison ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL C Rz E A Detector B R. Cx 8. As an alternative to galvanometer, connect an AC voltmeter between nodes A-B as the detector. 9. By adjusting R2, the bridge is balanced when the AC voltmeter reading is 0 V. 10. Measure the resistance of the adjusted potentiometer R2. Note down the values on Table 4.1. 11. Calculate the unknown resistance Rx unknown capacitance Cx using the formulas: R₁ = Cx- R₂ 12. Compare the computed unknown resistance Rx and Cx to its true value. Then, calculate for the percentage error using the formula: % Error = CS Scanned with CamScanner Measured Value True Value True Value x 100

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
Problem 6RQ: What is CEMF?
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ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL R₁ R₂ (measured) Rx (true value) Rx (computed) % Error 1 kQ 1 ΚΩ Rx₁ = Rx₂ = 1 kQ Rx 1 kQ Rx. 1 kQ Rxs = Table 4.1. Unknown Resistance Error Percentage Comparison C1 G Cx (true value) Cx (computed) % Error 47nF Cx₁ = 47nF Cx₂ = 47nF Cx3 = 47nF Cx. = 47nF Cxs= CS Scanned with CamScanner Table 4.2. Unknown Capacitance Error Percentage Comparison
Transcribed Image Text:ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL R₁ R₂ (measured) Rx (true value) Rx (computed) % Error 1 kQ 1 ΚΩ Rx₁ = Rx₂ = 1 kQ Rx 1 kQ Rx. 1 kQ Rxs = Table 4.1. Unknown Resistance Error Percentage Comparison C1 G Cx (true value) Cx (computed) % Error 47nF Cx₁ = 47nF Cx₂ = 47nF Cx3 = 47nF Cx. = 47nF Cxs= CS Scanned with CamScanner Table 4.2. Unknown Capacitance Error Percentage Comparison
ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL C Rz E A Detector B R. Cx 8. As an alternative to galvanometer, connect an AC voltmeter between nodes A-B as the detector. 9. By adjusting R2, the bridge is balanced when the AC voltmeter reading is 0 V. 10. Measure the resistance of the adjusted potentiometer R2. Note down the values on Table 4.1. 11. Calculate the unknown resistance Rx unknown capacitance Cx using the formulas: R₁ = Cx- R₂ 12. Compare the computed unknown resistance Rx and Cx to its true value. Then, calculate for the percentage error using the formula: % Error = CS Scanned with CamScanner Measured Value True Value True Value x 100
Transcribed Image Text:ELECTRICAL ENGINEERING INSTRUMENTATION AND CONTROL C Rz E A Detector B R. Cx 8. As an alternative to galvanometer, connect an AC voltmeter between nodes A-B as the detector. 9. By adjusting R2, the bridge is balanced when the AC voltmeter reading is 0 V. 10. Measure the resistance of the adjusted potentiometer R2. Note down the values on Table 4.1. 11. Calculate the unknown resistance Rx unknown capacitance Cx using the formulas: R₁ = Cx- R₂ 12. Compare the computed unknown resistance Rx and Cx to its true value. Then, calculate for the percentage error using the formula: % Error = CS Scanned with CamScanner Measured Value True Value True Value x 100
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