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The resistors in Wheatstone bridge circuit as shown below are given as R₁ = 3 k?, R₂ = 7 k?, R3 = 3 k?, and the source voltage is V₁ = 10 V. The voltmeter as shown by a circle in the diagram is almost an open circuit, so its current can be neglected.

The resistors in Wheatstone bridge circuit as shown below are given as R₁ = 3 k?, R₂ = 7 k?, R3 = 3 k?, and the source voltage is V₁ = 10 V. The voltmeter as shown by a circle in the diagram is almost an open circuit, so its current can be neglected.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The resistors in Wheatstone bridge circuit as shown below are given as R₁ = 3 k?, R₂ = 7 k?, R3 = 3 k?, and the source voltage is V₁ = 10 V. The voltmeter as shown by a circle in the diagram is almost an open circuit, so its current can be neglected. + VIO VL R3 Rx (√) R₁ R₂ VR (a) If the measured Rx = 12 k?, calculate the voltmeter reading Vo = VL - VR; (b) The balance condition makes Vo =OV. What is the value of Rx at balance?
Transcribed Image Text:The resistors in Wheatstone bridge circuit as shown below are given as R₁ = 3 k?, R₂ = 7 k?, R3 = 3 k?, and the source voltage is V₁ = 10 V. The voltmeter as shown by a circle in the diagram is almost an open circuit, so its current can be neglected. + VIO VL R3 Rx (√) R₁ R₂ VR (a) If the measured Rx = 12 k?, calculate the voltmeter reading Vo = VL - VR; (b) The balance condition makes Vo =OV. What is the value of Rx at balance?
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