Can Moving a Magnet Near Copper Wire Generate Usable Electricity?

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SUMMARY

Moving a magnet parallel to copper wire does not generate usable electricity; the magnetic field must move across the wire. A bicycle-powered electrical generator operates by pedaling, which turns a rotor with fixed magnets, generating electrical current in surrounding copper wire. This method can produce enough electricity for small devices, such as bicycle lights, but is impractical for larger power needs. The typical output for a bike dynamo is 6.3V at 2.1A, making it suitable for low-power applications.

PREREQUISITES
  • Understanding of electromagnetic induction principles
  • Familiarity with bicycle dynamo systems
  • Basic knowledge of electrical current and voltage
  • Experience with DIY electrical projects
NEXT STEPS
  • Research the principles of electromagnetic induction
  • Learn about bicycle dynamo design and functionality
  • Explore DIY electricity generation techniques
  • Investigate power requirements for various electrical devices
USEFUL FOR

Individuals interested in DIY renewable energy solutions, hobbyists building small electrical generators, and those exploring the practical applications of electromagnetic induction.

atgblue1
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Hey guys :) new here, Just a simple question to get started. looks like a great forum :D

Is the following statement correct or incorrect?

If I hold a normal magnet with north and south poles, and I move my hand in one direction parallel to copper wiring, will it generate an electrical charge that is "technically" usable, albeit it would be too weak for practical purposes?

Thanks for the info! I know there's probably a lot of "well" and "but" about this, I just mean on the basic practical level, would that generate "electrical current" ?

Thanks!
 
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Move your hand perpendicular to the wire. The magnetic field needs to move across the wire.

See 2:58 in this video
 
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thank you very much :)
 
OK further question, correct me if I'm wrong but do try to forgive some smaller incorrect technicalities:

A Bycicle powered electrical generator. Pedaling turns the belt which is basically making magnets inside the motor go 'round and 'round, generating electrical current in the surrounding copper wire at a fast enough rpm that it can be used for small things, Correct?
 
Generally the rotor has the wires and the magnets are fixed.
You can google this stuff easily. If you search for answers, and don't understand them, please feel free to ask questions. But at least expend a little effort first.

"How does a bicycle generator work" only gets about 190,000 results in 0.3seconds.
 
hmhm, Yes I have googled aplenty, and came to that conclusion. It just seems so simple that I feel I'm missing something. I have a particular idea in mind and I'm trying to learn enough to be able to build a basic model and see if it works. It would be an electricity generator, dare I say it, for "free" :D not free but free of the grid and completely DIY.
Every vid I've seen that gets close people are always nay-saying and spouting off fancy theories. So I wanted to see here if people jumped on it as being impossible or if basically, that's how to produce electricity.

I'll do some reading and maybe be back again :D thanks:D
 
atgblue1 said:
hmhm, Yes I have googled aplenty, and came to that conclusion. It just seems so simple that I feel I'm missing something. I have a particular idea in mind and I'm trying to learn enough to be able to build a basic model and see if it works. It would be an electricity generator, dare I say it, for "free" :D not free but free of the grid and completely DIY.
Every vid I've seen that gets close people are always nay-saying and spouting off fancy theories. So I wanted to see here if people jumped on it as being impossible or if basically, that's how to produce electricity.

I'll do some reading and maybe be back again :D thanks:D

None of your questions say how much power you need to generate. If you only need to light a bicycle light, then yes it is possible. If you need to heat or cool your house with a hand powered generator, then no thst is not practical.
 
atgblue1 said:
... looks like a great forum ...
Actually, it's a lot better than that :smile:
 
atgblue1 said:
A Bycicle powered electrical generator. Pedaling turns the belt which is basically making magnets inside the motor go 'round and 'round, generating electrical current in the surrounding copper wire at a fast enough rpm that it can be used for small things, Correct?
Yes, that's how a bike dynamo works, and it is arranged that way so there is no requirement for sliding electrical connections---no commutator or sliprings. A bike dynamo when powering lights makes the bike significantly harder to pedal. In the era when I rode to school the typical bike dynamo rating was 6.3V 2.1A. IIRC [emoji53]
 
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