he …… creates flux which will create an emf that cancels out the induced emf in the coil undergoing commutation *Pole shoeInterpolesCommutatorBrushes
Question
he …… creates flux which will create an emf that cancels out the induced emf in the coil undergoing commutation *Pole shoeInterpolesCommutatorBrushes
Solution
The correct answer is "Interpoles".
Interpoles are small poles placed between the main poles of a DC machine. They are connected in series with the armature and their function is to create a magnetic field which will produce an electromotive force (emf) that cancels out the induced emf in the coil undergoing commutation. This helps to prevent sparking at the brushes during commutation.
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