edited by
0 votes
0 votes

For the signal-flow graph shown in the figure, which one of the following expressions is equal to the transfer function $\dfrac{Y(s)}{X_{2}(s)}\bigg \vert _{X_{1}(s)=0}$ ?

  1. $\dfrac{G_{1}}{1+G_{2}(1+G_{1})} \\$
  2. $\dfrac{G_{2}}{1+G_{1}(1+G_{2})} \\$
  3. $\dfrac{G_{1}}{1+G_{1}G_{2}} \\$
  4. $\dfrac{G_{2}}{1+G_{1}G_{2}}$
edited by

Please log in or register to answer this question.

Answer: