The amount of feedback in an open loop system affects the performance of the sys

Question

The amount of feedback in an open loop system affects the performance of the system. The magnitude of the force on each bearing, as a result of a gyroscopic couple on a rotor, depends on the distance of the bearing from the centre of mass of the rotor. The type of input signal to a system does not have any effect on the response of the system as long as the initial conditions remain unchanged. Select from the expressions below the one that best describes statements (A) to (C) Expression (B) only is correct. Expressions (B) and (C) only are correct. Expression (C) only is correct. Expression (A) only is correct. Expressions (A) and (C) only are correct.

Explanation / Answer

3. b ( B& C correct)

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