Automation System
How is the integral mode implemented using analog methods?

Op amp and a capacitor
Op amp and resistors
All of these
None of these
Op amp and an RC network to place the error voltage across the capacitor

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Automation System
What is offset error?

None of these
the difference between the sensor input and the absolute sensed parameter.
the difference between the control setpoint value and the actual value.
All of these
the difference between the controller output and the setting of the manipulated variable.

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