The Wheatstone bridge in the circuit is balanced when R3 equals 3000 ohm. If the galvanometer has a resistance of 32 ohm, how much current in microampere will the galvanometer detect, when the bridge is unbalanced by setting R3 to 3003 ohm? Take v = 19 V. (Hint: Find the Thevenin equivalent with respect to the galvanometer terminals when R3 = 3003 ohm. Note that once we have found this Thevenin equivalent, it is easy to find the amount of unbalanced current in the galvanometer branch for different galvanometer movements.)
The Wheatstone bridge in the circuit is balanced when R3 equals 3000 ohm. If the galvanometer has a resistance of 32 ohm, how much current in microampere will the galvanometer detect, when the bridge is unbalanced by setting R3 to 3003 ohm? Take v = 19 V. (Hint: Find the Thevenin equivalent with respect to the galvanometer terminals when R3 = 3003 ohm. Note that once we have found this Thevenin equivalent, it is easy to find the amount of unbalanced current in the galvanometer branch for different galvanometer movements.)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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The Wheatstone bridge in the circuit is balanced when R3 equals 3000 ohm. If the galvanometer has a resistance of 32 ohm, how much current in microampere will the galvanometer detect, when the bridge is unbalanced by setting R3 to 3003 ohm? Take v = 19 V.
(Hint: Find the Thevenin equivalent with respect to the galvanometer terminals when R3 = 3003 ohm. Note that once we have found this Thevenin equivalent, it is easy to find the amount of unbalanced current in the galvanometer branch for different galvanometer movements.)
Transcribed Image Text:R3 500 2
Galvanometer
R3 $ 3000 2
R2 200 2
R, 1200 N
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