Question
The transfer function of a real system, H ( s) , is given as :
H(s) = As + B/ s2 +Cs +D
where A, B ,C and D are positive constants. This system cannot operate as
Options :
band pass filter
low pass filter
an integrator
high pass filter
Answer :
an integrator
,high pass filter
Solution :
Given :
Transfer function of a real system H(s) is given by,
H(s)= As+B/s2 +Cs+ D .......(i)
Put s=jw in equation (i),
H(jw)= A(jw)+ B/ (jw)2 +jwC+D .....(ii)
Magnitude,
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