How Does Frequency Affect the Strength of an Electromagnet?

[ymhtr]

I am looking for a relation between electromagnet (or permanent magnet) and frequency.For example what is the frequency of an electromagnet that has 45000 gauss electromagnetic field?
Thanks.

 

[Vanadium 50]

There is no such relation.

 

[Born2bwire]

You use a DC current to power an electromagnet. I am not aware of an electromagnet that uses AC currents without converting them first to DC.

 

[vin300]

has 45000 gauss electromagnetic field?
Thanks.

It is 45000 gauss magnetic field

I=I0[sin(wt+k)]
B=μnI/2πr {n=no.of loops, r=radius of a loop}

To the right are the values of μ
Ferrite U 60 => 1.00E-05
Ferrite M33 => 9.42E-04
Nickel (99% pure)=> 7.54E-04
Ferrite N41 => 3.77E-03
Iron (99.8% pure)=> 6.28E-03
Ferrite T38 => 1.26E-02
Silicon GO steel => 5.03E-02
supermalloy => 1.26

The frequency of current and magnetic field is equal to the frequency of source