📊 Control System Engineering
Q. An all-pass network imparts only
  • (A) negative phase to the input
  • (B) positive phase to the input
  • (C) 90 degree phase shift to the input
  • (D) 180 degree phase shift to the input
💬 Discuss
✅ Correct Answer: (D) 180 degree phase shift to the input

Explanation: an all-pass network is the network that is the combination of the minimum and non-minimum phase systems and have the magnitude 1 for all frequencies and imparts only 180 degree phase shift.

Explanation by: Mr. Dubey
an all-pass network is the network that is the combination of the minimum and non-minimum phase systems and have the magnitude 1 for all frequencies and imparts only 180 degree phase shift.

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