Control Systems
A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

 -90°
 -180°
 90°
 180°

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Control Systems
What is the full form of SPICE ?

  Simulated program with integrated circuit analysis.
 Sequential program with integrated circuit analysis.
 Stimulated program with integrated circuit arrangement.
 None of these.

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