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Can you explain the answer of this question below:
The sum of the gains of the feedback paths in the signal flow graph shown in fig. is
A: af + be + cd
B: af + be + cd+
abef + bcdeC: af + be + cd + abef + abcdef
D: af + be + cd + cbef + bcde + abcdef
The answer is a.
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Can you explain the answer of this question below:... moreThe sum of t...
Answer is B...because only 3 loops are present ...Loop means it must reach to start position without intersecting the path ....so how will the answer be (A)????
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Can you explain the answer of this question below:... moreThe sum of t...
- Any feedback path is considered as a valid feedback path if it does not touches any single node twice in its path.
- Feedback paths in the above diagram are af, be, cd, abef, bcde, and abcdef.
- abef is not a valid feedback path because node 'Q' is repeated twice in the path.
- bcde is not a valid feedback path because node 'R' is repeated twice in the path.
- abcdef is not a valid feedback path because node 'Q' and 'R' is repeated twice in the path.
So, af, be and cd are the only valid feedback paths. The sum of the gains of the feedback paths in the signal flow graph is af + be + cd.
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