Concept explainers
Why is it important that the current in the armature of a motor that uses a permanent magnet periodically change direction?
To explain: The reason for the current in the armature of a motor that uses a permanent magnet periodically changes direction.
Explanation of Solution
Introduction:
An armature is defined as a power generating component of an electric motor. The armature can act as a rotor that is the rotating part or as a stator that is the stationary part depending upon the type of machine.
In case of electric motor, the direction of the magnetic field needs to be changed continuously. So, the current in the armature changes the direction periodically in order to change the direction of magnetic field. Hence, electric current in the DC motor is reversed with half the rotation that is by the angle of
Conclusion:
Hence, the current in the armature of a motor that uses a permanent magnet periodically changes direction in order to change the direction of magnetic field.
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