Help using electromagnetic induction

AI Thread Summary
To create a generator using electromagnetic induction, a push-pull system with a bar magnet moving through a coil is being utilized to generate approximately 7.86 volts AC. The key to increasing the induced voltage is to maximize the rate of change of magnetic flux (dΦ/dt), which can be achieved by waving the magnet in front of the coil rather than moving it in and out. The discussion also touches on the importance of coil dimensions and configuration for optimal performance. Suggestions for moving the coil or adjusting the setup are encouraged to enhance efficiency. Overall, focusing on the movement technique is crucial for successful current generation.
Will1818
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Homework Statement


I am attempting to create a generator using electromagnetic induction. I am using a push pull system to move a bar magnet through a coil to create current. But I am unsure of the dimensions to build it with and when I attempt to use the equation I get stuck. I am looking for around 7.86 volts AC current.

Homework Equations


v = N × dΦ/dt

The Attempt at a Solution

 
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Will1818 said:

Homework Statement


I am attempting to create a generator using electromagnetic induction. I am using a push pull system to move a bar magnet through a coil to create current. But I am unsure of the dimensions to build it with and when I attempt to use the equation I get stuck. I am looking for around 7.86 volts AC current.

Homework Equations


v = N × dΦ/dt

The Attempt at a Solution

Welcome to the PF.

You will get a better dΦ/dt if you wave the end of the magnet back and forth in front of the coil, instead of pushing it in and out of the coil. Can you make that change?
 
Yes, what method of moving the coil would you suggest?
 
Will1818 said:
Yes, what method of moving the coil would you suggest?
What configuration do induction generators use? :smile:
 
Basically you have a copper coil and I just have to wave the magnet in front to create a change in magnetic flux.
 

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