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Automatic Control Systems - Engineering

Q1:

In Bode diagram (log magnitude plot) the factor in the transfer function gives a line having slope

A -20 dB per octave

B -10 dB per octave

C -6 dB per octave

D -2 dB per octave

ANS:C - -6 dB per octave

For term the slope is -20 dB/decade or -6 dB/octave because - 20 log 2 = -6 dB.