Control Systems
A proportional plus integral controller

 increases the stability of the system
 has high sensitivity
 both 2 and 3
 it increases rise time

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Control Systems
An open loop control system, represented by the transfer function G ( s ) = ( s - 1 ) / ( s + 2 )( s + 3 ), is

  unstable and of the minimum phase type.
  stable and of the minimum phase type.
  stable and of the non-minimum phase type.
  unstable and of the non minimum phase type .

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