Sketch a block diagram of the system

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The automatic control system for the temperature of a bath of liquid consists of a reference voltage fed into a differential amplifier. This is connected to a relay, which then switches on or off the electrical power to a heater in the liquid. Negative feedback is provided by a measurement system, which feeds a voltage into the differential amplifier. Sketch a block diagram of the system and explain how the error signal is produced.

Reference no: EM131383459

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