A: A system ideally should have infinite gain but if that is so then it will saturate to one state or the other Feedback [negative] insure that will not happen the feedback will control the saturation making it stable.
The ratio of Feedback voltage and output voltage.
Positive feedback Positive feedback
The types of feedback in the communication process are: Delayed feedback and immediate feedback It must be kept in the mind that feedback is the response to output
When there is no feedback to control its output.
In a feedback amplifier, positive feedback produces an output that is in-phase with the input signal. This can lead to instability and oscillation in the amplifier circuit. Positive feedback can increase the gain but at the risk of introducing noise and distortion.
A joystick is an input to a computer. A tiny caveat is that some joysticks have feedback - so they can vibrate to simulate resistance or movement; the feedback is an output.
In a positive feedback system, the output enhances or amplifies the input that started the process, causing a self-reinforcing loop. This means that an increase in the output leads to an increase in the input, continuing to drive the system further in the same direction.
Obviously by feedback
A: To feedback more of the same signal from the output to increase the input to farther increase the output and farther increase the input will ultimately saturate the system
A circuit in which output feeding back to input to increase or decrease the gain is called feedback circuit. Basically part of output feeding to input in such way that it increase the value of input is positive feedback and it also increase gain of circuit and similarly to it when part of output feeding to input in such way that it decrease the value of input is called negative feedback it also decrease the gain of circuit.
In a negative feedback loop, the output of the system decreases the intensity of the stimulus.
You are describing a closed-loop control system. This system continuously monitors the output and adjusts the input to maintain the output at the desired level by using feedback from the process.