A tachometer is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and in the effective time constant of the system?

Gain is reduced but the time constant is increased

Gain is increased but the time constant is reduced

A tachometer is used as an inner loop in a position control servo-syst

1.	A tachometer is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and in the effective time constant of the system?
A.	Both are reduced
B.	Gain is reduced but the time constant is increased
C.	Gain is increased but the time constant is reduced
D.	Both are increased
Answer» B. Gain is reduced but the time constant is increased

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A tachometer is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and in the effective time constant of the system?

A tachometer is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and in the effective time constant of the system?

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