1.

The transfer function of a control system is said to be 'All Pass System, if it has

A. Unit magnitude at all frequencies with anti-symmetric pole-zero pattern
B. Unit magnitude at all frequencies with symmetric pole-zero pattern
C. Magnitude varying with frequency and with anti-symmetric pole-zero pattern
D. Unit magnitude at some frequencies with symmetric pole-zero pattern
Answer» C. Magnitude varying with frequency and with anti-symmetric pole-zero pattern


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