Answer and explanation :
TRANSFER FUNCTION : transfer function is defined as the ratio of output and input at zero initial condition it is commonly denoted by T(S)
TRANSFER FUNCTION OF A CLOSED LOOP :
for a closed loop transfer function
[tex]T=\frac{G}{1+GH}[/tex]
where G is the forward path gain and H is the feedback gain close loop is formed when output is connect to input through a feedback this feedback may be a positive feedback or negative feedback but generally use negative feedback
