Frequency Domain Analysis » Exercise - 1 17. At the phase crossover frequency, ω =10 rad/s,│G(j ω)H(j ω) │= 15 dB. Its gain margin : (a) 15 dB (b) 0 dB (c) -15 dB (d) cannot be predicted
Frequency Domain Analysis » Exercise - 1 18. At the gain crossover frequency : (a) │G G(jω)H(jω) │ = 0 dB (b) │ G(jω)H(jω) │ = 1 dB (c) │ G(jω)H(jω) │ = -20 dB (d) │ G(jω)H(jω) │ = 20 dB
Frequency Domain Analysis » Exercise - 122. At the phase crossover frequency, ω =10 rad/s,│G(j ω)H(j ω) │= -8 dB. The system is : (a) stable (b) unstable (c) conditionally stable (d) cannot be predicted