In control system excessive bandwidth is not employed because(a) Noise is proportional to bandwidth(b) It leads to low relative stability(c) It leads to slower time response(d) Noise is proportional to the square of the bandwidthThis question was addressed to me by my college professor while I was bunking the class.Question is taken from Feedback Compensation topic in section Design of Control Systems

In control system excessive bandwidth is not employed because(a) Noise

1.	In control system excessive bandwidth is not employed because(a) Noise is proportional to bandwidth(b) It leads to low relative stability(c) It leads to slower time response(d) Noise is proportional to the square of the bandwidthThis question was addressed to me by my college professor while I was bunking the class.Question is taken from Feedback Compensation topic in section Design of Control Systems
Answer» Correct CHOICE is (a) NOISE is proportional to bandwidth Best explanation: In closed loop system the bandwidth of the system is more as compared to the OPEN loop system and this is so required as higher the bandwidth means LOWER the SELECTIVITY and hence higher the noise.

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