Help using electromagnetic induction

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Homework Help Overview

The discussion revolves around the creation of a generator utilizing electromagnetic induction. The original poster is exploring the design of a system that involves moving a bar magnet through a coil to generate approximately 7.86 volts of AC current, but is uncertain about the dimensions and application of relevant equations.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the movement of the magnet and its effect on the rate of change of magnetic flux. There are inquiries about alternative methods for moving the coil and the configurations used in induction generators.

Discussion Status

Some participants have offered suggestions to improve the effectiveness of the magnetic flux change by altering the movement of the magnet. The conversation is ongoing, with various methods and configurations being explored without a clear consensus.

Contextual Notes

There is a focus on the dimensions of the generator setup and the specific requirements for achieving the desired voltage output. Participants are also considering the implications of different movement techniques on the generator's performance.

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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