Discussion
A control transformer differs from a synchro receiver in that it
Answer: B
Correct answer: gives an output voltage proportional to the angular error
A control transformer’s rotor is not free to follow; it stays where the servo has put it, and the voltage induced in it measures the difference between its own angle and the angle transmitted. That error voltage is the input to the servo amplifier, which drives the load until the voltage falls to zero.
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