ROBLEM 3: For the Wheatstone bridge below: Initially all four arms of the bridge are equal to 1670. The resistance R₁ is a sensor whose resistance changes with strain. The supply voltage is 10.5 volts dc. (Assume Rm = ∞0). B A R₁ E₁ 12 L R₂ ww R₁ D -M Em R 84 a. If the resistance R₁ changes such that the bridge output is 0.235 volts, determine the value of R₁. b. Determine the current flow through R₁.

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ISBN:9780133923605
Author:Robert L. Boylestad
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PROBLEM 3:
For the Wheatstone bridge below:
Initially all four arms of the bridge are equal to 1670. The resistance R₁ is a sensor whose
resistance changes with strain. The supply voltage is 10.5 volts dc. (Assume Rm = 0o).
B
A
R₁
W
4
R₁
D
Em
Rm
88
E₁
a. If the resistance R₁ changes such that the bridge output is 0.235 volts, determine
the value of R₁.
b. Determine the current flow through R₁.
Transcribed Image Text:PROBLEM 3: For the Wheatstone bridge below: Initially all four arms of the bridge are equal to 1670. The resistance R₁ is a sensor whose resistance changes with strain. The supply voltage is 10.5 volts dc. (Assume Rm = 0o). B A R₁ W 4 R₁ D Em Rm 88 E₁ a. If the resistance R₁ changes such that the bridge output is 0.235 volts, determine the value of R₁. b. Determine the current flow through R₁.
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