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A Wheatstone Bridge has P = 3.5 k 2, Q = 7 k2, and S = 4 k 2 when R= 2 k2. The supply is EB 20 V, and the galvanometer has a current sensitivity of 2 μA/mm and a resistance RG = 2.5 k 2. Calculate the minimum change in R, which is detectable by the bridge.

A Wheatstone Bridge has P = 3.5 k 2, Q = 7 k2, and S = 4 k 2 when R= 2 k2. The supply is EB 20 V, and the galvanometer has a current sensitivity of 2 μA/mm and a resistance RG = 2.5 k 2. Calculate the minimum change in R, which is detectable by the bridge.

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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A Wheatstone Bridge has P = 3.5 k 2, Q = 7k 2, and S = 4 k 2 when R = 2 k2. The supply is EB 20 V, and the galvanometer has a current sensitivity of 2 μA/mm and a resistance RG 2.5 k 2. Calculate the minimum change in R, which is detectable by the bridge. =
Transcribed Image Text:A Wheatstone Bridge has P = 3.5 k 2, Q = 7k 2, and S = 4 k 2 when R = 2 k2. The supply is EB 20 V, and the galvanometer has a current sensitivity of 2 μA/mm and a resistance RG 2.5 k 2. Calculate the minimum change in R, which is detectable by the bridge. =
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