The diagram above illustrates a meter bridge circuit underbalanced conditions. Determine the value of x.
Attached Figure / Diagram
A
50.cm
B
10.0 cm
C
28.6 cm
D
57.2 cm
Verified Correct Answer: A.
Physical Principles & Numerical Solution
Using wheatstone bridge principle;
\(\frac{2}{x} = \frac{2}{(100 - x)}\)
2(100 - x) = 2 x \(x\)
200 = 2\(x + 2x\)
200 = 4x
x = \(\frac{200}{4}\)
= 50cm
Source: Myschool Past Questions Archive (Record #58941)