As shown in the illustrated electrically operated watertight door controller, how is the rotation direction of the door motor reversed? Illustration EL-0115

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Accepted Answer

reversing the direct current direction through the motor armature and maintaining the same direct current direction through the motor series field

Answer

reversing the direct current direction through the motor series field and maintaining the same direct current direction through the motor armature

Answer

reversing the direct current direction through the motor series field and the motor armature

Answer

reversing the direct current direction through the motor armature and maintaining the same direct current direction through the motor shunt field

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