Question 246Electricity & Electronics - QMED

The correct answer is B) interpoles. In a DC motor, the commutating windings are wound on the interpoles, which are small auxiliary poles placed between the main poles. The purpose of the commutating windings is to create a magnetic field that helps commutate the current in the armature windings, ensuring a smooth and efficient transfer of power from the armature to the external circuit. The other options are incorrect because: A) the main poles are responsible for the main magnetic field, not the commutating windings; C) the commutating windings are not wound on the adjacent main poles; and D) the commutating windings are not wound on the rotor core, but rather on the interpoles.