1.what is controller proportional gain 2.what is the controller intergral actio

1.what is controller proportional gain
2.what is the controller intergral action time.
3.A proportional plus derivative controller that has a
proportional band of 20% and a derivative action time of
0.1 minutes.
Construct the shape of the output waveform for the
triangular input
if the input rises and falls at the rate of 4 units
per minute.

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