Understanding Sensitivity in Negative Feedback: Definition and Explanation

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In summary, sensitivity refers to the ability to respond to changes in the environment and detect small differences or changes. It can be measured in various ways in different fields of science. Factors such as genetics, environment, and individual differences can affect sensitivity. Sensitivity plays a crucial role in scientific research by allowing for more accurate and reliable data. It can be improved in some cases through training or adaptation, but may also be limited by biological or physical factors.
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Homework Statement



In study of negative feedback and stuff we define sensitivity as ration of the change in the fraction of gain with feedback to the fraction of gain without feedback. We get S = 1/(1+GH)

I was interested in knowing why did we choose to define it this way... Why not simply as ratio of change in the gain with feedback to change in gain without feedback? Then we'll get S=1/(1+GH)^2

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someone reply please...
 

FAQ: Understanding Sensitivity in Negative Feedback: Definition and Explanation

What is the definition of sensitivity?

Sensitivity refers to the ability of a system, organism, or individual to respond to changes in its environment. It can also refer to the ability to detect or measure small differences or changes.

How is sensitivity measured in science?

In science, sensitivity can be measured using various methods depending on the specific context. For example, in biology, sensitivity can be measured by exposing an organism to a specific stimulus and observing its response. In physics, sensitivity can be measured by determining the smallest change in a measurement that can be detected by an instrument.

What factors can affect sensitivity?

There are many factors that can affect sensitivity, such as genetic variations, environmental conditions, and individual differences. Additionally, the level of sensitivity can also be influenced by previous experiences and learning.

How does sensitivity impact scientific research?

Sensitivity is a crucial aspect of scientific research as it allows for the detection and measurement of small changes or differences. This allows for more accurate and reliable data, leading to a better understanding of the phenomena being studied.

Can sensitivity be improved?

In some cases, sensitivity can be improved through training or adaptation. For example, an individual's ability to detect a specific odor can be improved through repeated exposure and practice. In other cases, sensitivity may be limited by biological or physical factors and cannot be significantly improved.

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