What is the definition of negative feedback?

Answer 1

(Biology) Mechanism of the homeostatic response by which the out put of a system suppresses or inhibits activity of the system: Eg- when a certain blood concentration of a hormone is reached, the endocrine gland releasing the hormone is inhibited by the presence of the hormone.
feedback is often use in electronic ckt like amplifiers............

feedback is process of sampling a part of the output{apmlified} signaland applying it back tothe input via network by using capacitors inductors etc but mostly resistors.........called feedback loop..

it is of two types.....positive feedback and negative feedbach....

in positive feedback output gain is increases as output signal is in ssame phase with input signal whereas in negative feedback output gain decreases as output signal is in opposite phase with input signal........

Answer 2

Nothing bad like the name implies it is just a way for the body to regulate the number of what ever hormone or element or what ever in the body. By doing the opposite of the reaction that made it. For example if there is too much Calcium in your body it will do negative feed back and run the reaction that made the calcium backwards to get rid of it.

Answer 3

It feeds part of a systems output, inverted, into the system's input. The "negative feedback inhibition" controls the endocrine system.

Answer 4

A feedback in which the system responds in an opposite direction to the perturbation.