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Determination of the direction of electric motor rotation

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See attached file.

Determine the direction of rotation of the armature for the current and field directions. Show lines of force.

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Solution Summary

This solution shows how to apply Fleming's Left Hand Rule to determine the direction of rotation of the armature of an electric motor. A diagram is presented and the steps taken to derive the direction of force felt on each side of the armature to deduce the direction of the motor rotation.

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See attached file for the diagram.

What you need to do is this

1) Determine the current direction in the armature so if you are looking down on the armature from above this would flow + to - so in a CLOCKWISE direction. I have tried to indicate current flow by an arrow in the attached diagram.

2) Note now that the current flow ...

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