Problem 7-1: Consider the Wheatstone bridge shown in the figure below: B R₁ 11 12 A 13 m R3 C R2 ww MRA E 卝 Basic current-sensitive Wheatstone bridge circuit (G is a galvanometer). Suppose: R3 R4 = 200 2 == R2 = variable calibrated resistor R₁ = transducer resistance = 40x + 100 (a) When x = 0, what is the value of R2 required to balance the bridge? (b) If the bridge is operated in a balanced condition in order to measure x, determine the relationship between R2 and x.

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Problem 7-1: Consider the Wheatstone bridge shown in the figure below:
A
B
R₁
11
13
12
R2
14
R3
C
ww
RA
卝
E₁
Basic current-sensitive Wheatstone bridge circuit (G is a galvanometer).
Suppose:
R3 R4 = 200 2
=
R2 = variable calibrated resistor
R₁ = transducer resistance = 40x + 100
(a) When x = 0, what is the value of R2 required to balance the bridge?
(b) If the bridge is operated in a balanced condition in order to measure x, determine the relationship between
R2 and x.
Transcribed Image Text:Problem 7-1: Consider the Wheatstone bridge shown in the figure below: A B R₁ 11 13 12 R2 14 R3 C ww RA 卝 E₁ Basic current-sensitive Wheatstone bridge circuit (G is a galvanometer). Suppose: R3 R4 = 200 2 = R2 = variable calibrated resistor R₁ = transducer resistance = 40x + 100 (a) When x = 0, what is the value of R2 required to balance the bridge? (b) If the bridge is operated in a balanced condition in order to measure x, determine the relationship between R2 and x.
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