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What happens to the gain sensitivity of negative feedback system due to fractional change in open loop gain when feedback gain His about 0.01-0.05.

Here's my work:

enter image description here

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  • \$\begingroup\$ That's a good question. What do you think about it? \$\endgroup\$
    – jwh20
    Commented Feb 8, 2021 at 13:04
  • \$\begingroup\$ According to me it should decrease by 1/(1+AB)...but I am not sure \$\endgroup\$ Commented Feb 8, 2021 at 13:05
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    \$\begingroup\$ Show your work. It's pretty clear this is a homework or a test question. \$\endgroup\$
    – jwh20
    Commented Feb 8, 2021 at 13:07
  • \$\begingroup\$ Well, have you seen it? \$\endgroup\$ Commented Feb 8, 2021 at 13:14
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    \$\begingroup\$ Where's beta and what is T? \$\endgroup\$
    – Andy aka
    Commented Feb 8, 2021 at 13:29

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