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UPSC ESE 2026 Electronics and Telecommunications Paper

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Question : 16 of 150

Marks: +1, -0

Consider the following statements regarding Mason's gain formula

\sum\limits_{k=1}^{k} \;\frac{P_k \Delta k}{\delta}

\;\; P_k

is the forward path transmittance of

k_{th}

path from a specified input node to an output node.

\Delta

is the graph determinant which involves closed-loop transmittances and mutual interactions between non-touching loops.

3. The path factor

\Delta_{k}

for the kth path is equal to the value of the graph determinant of a now graph which exists aner erasing the

k_{\;\text{th }\;}

path from the graph.

Which of the above statements are correct?

1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3

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