Calculating Coil Windings in Generators

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SUMMARY

The calculation of coil windings in generators is governed by Faraday's law, represented by the equation \(\xi = -N \frac{d \Phi}{dt}\), where \(\xi\) is the induced EMF, \(N\) is the number of loops, and \(\Phi\) is the magnetic flux. The magnetic flux can be calculated using the formula \(\Phi = BA \cos \phi\), where \(B\) is the magnetic field strength, \(A\) is the area, and \(\phi\) is the angle between the magnetic field and the surface normal. This discussion emphasizes the importance of understanding these equations for constructing a small generator with magnetic and copper coils for 12 volts.

PREREQUISITES
  • Understanding of Faraday's law of electromagnetic induction
  • Knowledge of magnetic flux calculations
  • Familiarity with basic electrical engineering concepts
  • Experience with coil winding techniques
NEXT STEPS
  • Research the application of Faraday's law in practical generator design
  • Explore magnetic flux calculations in different geometries
  • Learn about coil winding techniques for efficient energy generation
  • Investigate materials suitable for constructing a 12-volt generator
USEFUL FOR

This discussion is beneficial for electrical engineers, hobbyists building small generators, and anyone interested in the principles of electromagnetic induction and coil design.

amintanharpd
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hi , i want to know that how calculate coil windings in the genarators,
i want make a small genarator with magnetic and copper coil for 12 volt but i couldn't find a formula for number of coil cycle please guide me about this , thank u.
 
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amintanharpd said:
hi , i want to know that how calculate coil windings in the genarators,
i want make a small genarator with magnetic and copper coil for 12 volt but i couldn't find a formula for number of coil cycle please guide me about this , thank u.

The equation you're looking for is known as Faraday's law.

\xi =-N \frac{d \Phi}{dt}

What this says is that the average EMF induced in a coil of N loops depends upon the rate of change in magnetic flux through one loop.

\Phi = BA \cos \phi is a general expression for magnetic flux that says magnetic flux is equal to the magnitude of the magnetic field, times the area of the surface the flux is passing through, times the cosine of the angle that the flux makes with the normal to the surface. i.e if the flux is perpendicular to the surface, \cos 0 = 1 so it disappears from the equation.

Do you have any further information regarding how you are going to make this generator?

You can do further reading here;

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c1
 
thank u very much , the link and your information about that was very useful for me thank u ;)
 

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