How does a current translate into turning a motor?

AI Thread Summary
A current flowing through a wire generates a magnetic field, which is fundamental to the operation of electric motors. When a switch is flipped, this magnetic field interacts with components in the motor, causing movement, such as spinning a fan blade. The discussion highlights a gap in practical understanding of physics, emphasizing that while calculations are taught, real-world applications are often overlooked. Resources like Wikipedia and HowStuffWorks provide accessible explanations of how electric motors function. Understanding these principles is crucial for grasping how electrical energy is converted into mechanical motion.
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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Thanks.
 
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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