The transfer functions of the two compensators are given below:
\({C_1} = \frac{{20\left( {s + 2} \right)}}{{\left( {s + 20} \right)}},\;{C_2} = \frac{{\left( {s + 20} \right)}}{{20\left( {s + 2} \right)}}\)
Which of the following statements is/are true?
1
C1 is a lead compensator and C2 is a lag compensator
2
C1 is a lag compensator and C2 is a lead compensator
3
Maximum phase shift is provided by C1 at a frequency of 6.32 rad/sec
4
Maximum phase shift provided by C2 is 51.4°