Question 149Electricity & Electronics - QMED

The correct answer is B) reversing the direct current direction through the motor armature and maintaining the same direct current direction through the motor series field. To reverse the rotation direction of a DC motor, you need to reverse the direction of the current flowing through the armature. By keeping the current direction through the series field the same, you maintain the same magnetic field, but the reversed armature current will cause the motor to spin in the opposite direction. The other options are incorrect because: A) reversing both the armature and series field would result in the same rotation direction; C) reversing both would also not reverse the direction; and D) the shunt field is not involved in the basic reversing of a DC motor.