Question:
In the signal flow graph of given figure, \( \frac{y}{x} \) equals ________.
In the signal flow graph of given figure, \( \frac{y}{x} \) equals ________.
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Use Mason’s Gain formula or simplify path-wise for small signal flow graphs. Forward path × gains = total gain.
Updated On: Jun 23, 2025
- 3
- 2
- 2.5
- 1.5
Show Solution
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The Correct Option is B
Solution and Explanation
Apply Mason’s Gain Formula:
\[
\frac{y}{x} = \text{Sum of forward paths with gain} = 2 \times 1 = 2
\]
Feedback loop gain = -2, but it doesn’t affect the main forward path in this simple structure.
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