For a proportional controller, the controlled variable is a process temperature with a range of 50 to and a setpoint of 73.5°C.
Under nominal conditions, the setpoint is maintained with an output of 50%. Find the proportional offset resulting from a load change that requires a 55% output if the proportional gain is (a) 0.1, (b) 0.7, (c) 2.0, and (d) 5.0.