walters

Alnico magnets are used for guitars alots but there is different mixtures
like Alnico I-II-III-IV-V different mixtures of Alnico

Is a magnet the same as a inductor ? i don't get about these different types of mixtures because they all have different frequency responses
why is that and how can u tell about a magnets frequency response?

a Magnet with wire turns around a pole = a coil

Whats the theory on Electro Magnets? im new to this stuff

Because winding the wire about the magnet can produce different frequency responses, Q points, resonances, midrange boost or midrange peaks how?

mstechca

Yes and No.
At a basic point of view, an inductor is a piece of wire wound many times. I'm not going to explain what a magnet is because you should know what a magnet is.

When an inductor is used in an electronic circuit, it produces a magnetic field.

this describes an inductor with a magnetic core.

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Oznog

A magnet is not usually wound to make an inductor. An inductor core is made out of a magnetic iron-based material but it is designed to not be permanently magnetized. It gets temporarily magnetized when current is passed through the coil.

When you have a moveable permanent magnet move inside a coil, the changing magnetic field creates current. That's how motors and the non-condensor type microphones work.

A permanent magnet doesn't really have a frequency response since it only creates a constant field. That being said, I can't rule out subtle nuances in its properties that would affect the frequency response of a speaker.

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I thought what I'd do was I'd pretend I was one of those deaf-mutes.

mstechca

I don't think you can wind up magnets anyways :lol:

There are air core inductors. and you can even make one yourself!

the "coil" is the inductor. is it not?
at least the coil is responsible for providing the inductance value.

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walters

What is a magnet then is it a LCR network?

Because there is different mixtures when making magnets what does this do ?

Magnets have different frequency responses from different mixtures why is that?

How can a magnet have different frequency responses? what kind of component is a magnet a inductor,resistor,cap?

mstechca

not even close :lol:

an LCR network is an inductor, capacitor and a resistor connected together in some way, shape, or form.

what does what do?

Didn't someone tell you that magnets don't have a frequency response?

like the poster above you said, THEY DONT!

Someone send this guy back to school, he really needs it. I'm sure you can learn 1/2 of this in highschool!

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walters

Thanks for correcting me


How to change the magnetic field?
How to change th flux?
How do change the permeability?

When winding a wire around a magnetic it creates a magnetic field
and then the magnetic and wire from a electromagnetism?

a Coil and a magnet from a current, so changing the flux changes the magnetic field changing the current?

It seems like magic from just taking a magnet and wrapping a wire around it forms a magnetic field and flux and having a current output

It seems like a magnet is a voltage generator?
Its seems like a coil and magnet form a current generator?

walters

Is the magnetic Field and Flux the same thing whats different about them?

Is The permeability a magnetic field or flux?

What is a permeabiltiy?

Oznog

It'd be hard to explain it, magnetics requires some physics understanding. Lots of web pages can give you an explanation with pics and such.

Understand that permanent magnets are very different things compared to magnetic materials such as used in transformers and inductors. In the transformer, you want to use a coil to change the magnetic flux in the core. A permanent magnet has a fixed, built-in flux that resists change.

A wire in a changing magnetic field produces current. This is not free power though.

One way to do this is moving a permanent magnet past a coil (or vice versa). It's not free because when power is drawn off it there will be "drag" force between them which slows down the moving object.

The other common use is a transformer where there's no motion between the core and the coils. The first coil produces a varying magnetic field so the second coil will experience a changing magnetic field thus produce its own current.

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I thought what I'd do was I'd pretend I was one of those deaf-mutes.

mstechca

A magnet and a coil cannot produce voltage or current by themselves.

If you want to make voltage, take a motor, and an LED. Connect the LED to the motor. you need to attach the motor to something that spins.
Hey, why not take a bicycle, and attach the end of the motor to it. When you ride your bike, the motor spins, and the LED lights (if the motor is spinning the right way). Go faster, and the LED goes brighter.

I shall compliment you for the fact you love exploring objects, but I think you are asking about stuff that doesn't really matter.

Are you doing a project on magnets for school?

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-=: The best low-priced components to troubleshoot with are the speaker and the LED :=-

walters

thanks guys for the help no not school work just need help

so whats the difference betwen a inductor VS a magnet?

a coil is a magnet with wire wrapped around it which is a inductor?

A inductor has Flux and a magnetic field?

A magnet has Flux and a Magnetic field but whats the difference from a inductor they seem like the same thing

walters

why does the magnetic and wire wrapped around the magnetic cause a resonance frequency?

audioguru

Hi Walters,
I think you are talking about a magnetic pickup for a guitar that has steel strings. When the steel string vibrates near the pickup, an AC voltage is generated in the coil that is wound around the magnet, because the magnetic field from the magnet is disturbed by the string.
The coil has inductance and capacitance in parallel so therefore causes resonance. Additional capacitance can be added in parallel to reduce the frequency of the resonance. The load resistance for the pickup can be reduced to damp resonance or increased to allow resonance.

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Uncle $crooge

walters

Thanks

The coil has inductance and capacitance in parallel

What is the inducatanc and capacitance?

Is the inductance the magnetic?
is the capacitance the magnetic or gauge of wire?

walters

So the Magnet = is a inductor because of flux,magnetic fields like
a inductor

The Guage of wire- is the capacitance

The wire windings- is the resisantance

Total= LCR= DC resistance= impedance= Resonance Frequency >?
If fender used Alnico 5 then this is a constant FIXED
The only difference is the winding differences and gauge of wire

so L = magnet= constant

C= wire guage

R= Winding differences