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ELECTRIC MOTOR - Coggle Diagram
ELECTRIC MOTOR
HOW WORK MOTOR?
- A simple electric motor consists of a cylindrical armature, which is positioned between the north and south poles of a permanent magnet;
- Abatteryfeedsdirectcurrentintothe coil;
- Thisproducesamagneticfieldaround the coil transforming the armature into an electromagnet;
- The permanent magnetic field interacts with the magnetised armature forcing it to rotate, as the north pole of the permanent magnet attracts the south pole of the armature;
- The current is reversed every half-turn by an attachment called a commutator;
- This has the effect of reversing the north and south poles of the armature, keeping it in a state of rotation;
- The continuous turning motion of the armature drives the motor
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