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naeem shaik
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generally in the pmdc motor the armature will rotate.As it works with the help of magnets ,if i provide external magnets to motor ,there will be any change in the rotation of armature?
In principle: Yes.naeem shaik said:if i provide external magnets to motor ,there will be any change in the rotation of armature?
External magnets can significantly increase the performance and efficiency of a PMDC motor. By placing additional magnets on the outside of the motor, the magnetic field is strengthened, resulting in a stronger torque and faster rotation.
The most commonly used magnets for external magnets in PMDC motors are rare earth magnets, such as neodymium or samarium-cobalt. These magnets have a strong magnetic field and are able to produce a significant increase in motor performance.
External magnets can be attached to the motor in various ways, such as gluing, clamping, or screwing them onto the motor casing. It is important to ensure that the magnets are securely attached and properly aligned for optimal performance.
The use of external magnets in a PMDC motor can lead to increased torque, higher efficiency, and improved speed control. It can also extend the lifespan of the motor by reducing wear and tear on the internal components.
One potential drawback of using external magnets is the added weight and size to the motor. This can affect the overall size and portability of the motor. Additionally, if not properly installed, the magnets could cause interference with the motor's internal magnetic field, leading to performance issues.