How does a current translate into turning a motor?

  • Context: High School 
  • Thread starter Thread starter LogicX
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    Current Motor Turning
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Discussion Overview

The discussion revolves around the relationship between electric current and its ability to produce mechanical motion, specifically in the context of electric motors. Participants express a desire for practical explanations rather than theoretical calculations, highlighting a gap in understanding how theoretical concepts apply to real-world applications.

Discussion Character

  • Exploratory
  • Conceptual clarification

Main Points Raised

  • One participant questions how a current flowing through a wire translates into mechanical motion, such as spinning a fan blade.
  • Another participant references external resources like Wikipedia and HowStuffWorks for basic information about electric motors.
  • There is acknowledgment of learning about inducing magnetic fields with current in physics, but uncertainty about its application in devices is expressed.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the explanation of how current translates into motion, and multiple viewpoints regarding the clarity of practical applications of physics concepts are present.

Contextual Notes

Participants express limitations in their understanding of practical applications of theoretical concepts learned in physics, indicating a potential gap in educational focus.

LogicX
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So you have a current flowing through a wire. How do you go from that to, say, spinning a fan blade when you flip a switch?

I took physics but they were more interested in teaching us obscure calculations than actually explaining practical material. If you want to know the total resistance of a circuit I can do that, I just can't tell you what on Earth you will be doing with that circuit.
 
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LogicX said:
So you have a current flowing through a wire. How do you go from that to, say, spinning a fan blade when you flip a switch?

I took physics but they were more interested in teaching us obscure calculations than actually explaining practical material. If you want to know the total resistance of a circuit I can do that, I just can't tell you what on Earth you will be doing with that circuit.

xts said:

Yeah, wikipedia and howstuffworks.com are both pretty good places to get basic information about how things work:

http://www.howstuffworks.com/motor.htm

.
 
berkeman said:
Yeah, wikipedia and howstuffworks.com are both pretty good places to get basic information about how things work:

http://www.howstuffworks.com/motor.htm

.

Yes we obviously learned about inducing magnetic fields with a current in physics, I just didn't know that that was how most devices worked.
 

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