Physic project -- DC motor with electromagnets

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Homework Help Overview

The discussion revolves around building a DC motor using four electromagnets, with participants exploring the feasibility and design aspects of such a project. The original poster expresses uncertainty about sourcing information and the specific requirements of using electromagnets instead of permanent magnets.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants suggest looking for video resources to aid in the construction process. There is a question regarding whether electromagnets can effectively replace permanent magnets in the motor design. Some share personal experiences with similar projects, highlighting the use of electromagnets in their designs.

Discussion Status

Guidance has been offered regarding the use of electromagnets, with some participants indicating that it is possible to replace permanent magnets with electromagnets. There is ongoing exploration of how to synchronize the excitation of the electromagnets with the motor's rotation, indicating a productive direction in the discussion.

Contextual Notes

Participants note that the project constraints include a requirement to use electromagnets exclusively, as specified by the teacher, which raises questions about design and functionality.

colin99
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1. The problem statement, all variables and given
I do not have a clue where to get the information to built a DC motor with four electromagnets


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The Attempt at a Solution

 
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Thanks but my teacher do not want magnet. He wants it to be electromagnets instead. I'm a bit a t lost here. Do the electromagnet ca replace the magnet?
 
I built, what was called a Tin Can Motor, when I was a kid. It used a coil on the rotor (moving part) and the stator (stationary part). So it had 2 electromagnets, rather than any permanent magnets. Here is a link that I found to some vintage projects, which are not exactly that, but similar. I am not sure about if there are 4 electromagnets, or not. http://www.vintageprojects.com/science/5-motors.pdf
 
colin99 said:
Thanks but my teacher do not want magnet. He wants it to be electromagnets instead. I'm a bit a t lost here. Do the electromagnet ca replace the magnet?
Yes. One electromagnet will be permanently excited in one current direction but the other you will have to figure out how to excite it alternately and synchronously with the rotation of the motor ...
 
Here is another one that I found, you may find interesting.
 
If you see a simple motor built around a horse-shoe permanent magnet, then you can replace that horse-shoe magnet with a similarly-shaped electromagnet.
 
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