Question 247Electricity & Electronics - QMED

The correct answer is A) The direction of rotation of the armature will remain the same. When both the polarity of the field poles and the direction of current to the brushes of a DC motor are reversed, the magnetic field in the motor remains unchanged. Since the direction of the magnetic field and the direction of the current in the armature windings are both reversed, the torque produced and the direction of rotation of the armature will remain the same. The other options are incorrect because: B) The motor will still start since the magnetic field and current in the armature are reversed together, C) The direction of rotation will not be reversed, and D) The field pole windings will not become overheated since the magnetic field is unchanged.