Strength of magnetism and electrism

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    Magnetism Strength
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SUMMARY

The discussion focuses on the relationship between magnetism, electrism, and the forces required to rotate a disc with a resistance of 100Nm using a 220V AC motor. Key insights include the necessity of specifying the desired rotational speed to accurately calculate the power needed, which is directly proportional to both speed and resistance. Participants emphasize that motor ratings are based on power output rather than electric or magnetic field strength, highlighting the importance of selecting a motor that meets the mechanical power requirements for the application.

PREREQUISITES
  • Understanding of torque measurement in Newton-meters (Nm)
  • Knowledge of power calculations in relation to speed and resistance
  • Familiarity with AC motor specifications and ratings
  • Basic principles of electric motor design
NEXT STEPS
  • Calculate power requirements for rotating a disc with specified resistance
  • Research the specifications of 220V AC motors suitable for high torque applications
  • Explore electric motor design principles on Wikipedia and related resources
  • Investigate the impact of rotational speed on resistance and power output
USEFUL FOR

Engineers, electrical technicians, and hobbyists interested in motor applications, torque calculations, and electric motor design principles.

physior
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hello

can you give me some idea of the quantity of magnetism, electrism and forces involved?

for example, what is the torque in Nm or the Joules, that I can generate, via a motor perhaps, from a 220V AC motor?

I want to know how much magnetism and electrism I need to rotate a disc that poses a resistance in rotation of 100Nm

etc

thanks!
 
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We can't answer that until you specify how fast you need to rotate that disk.

The next step is to calculate the power, which is proportional to speed and resistance. By the way, the resistance will change with speed.

Then you can match it with a motor capable of supplying that much mechanical power. Motors are usually rated in terms of power, not electric and magnetic field strength.

On the other hand, if you are interested in electric motor design, a good place to start is Wikipedia electric motors. The references and external links in that article will lead you to additional sources.
 

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