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1 October, 02:49

What is the function of the commutator in a DC motor? A. to spin the magnet B. to change direct current into alternating current C. to change alternating current into direct current D. to spin the wire coil

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  1. 1 October, 05:49
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    Correct Answer is B (to change direct current into alternating current)

    Explanation

    commutation

    The main aim of commutation is to maintain the torque acting on armature of DC motros in the same direction.

    commutator a switch which is used to convert the direction of flow of electric current it is connected to the armature of DC motor.

    In DC motors, voltage across the armature is alternating in nature. The direction of this current is reverses by Commutator when armature of DC motors passes through magnetic neutral axis to maintain the unidirectional. Hence, commutator is used to change direct current into alternating current.
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Home » Physics » What is the function of the commutator in a DC motor? A. to spin the magnet B. to change direct current into alternating current C. to change alternating current into direct current D. to spin the wire coil
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