Anyone know how to calculate an electromagnets field dimensions?

[Anonymous No.5776678]

Im trying to teach myself electricity and magnetism and the related math, but im not having much luck. Would really appreciate any help afforded me.

dat cheesecake unrelated.

[Anonymous No.5776707]

Have you learned basic Calc? Check out the book Div, Grad, Curl, and All That for a good introduction to vector calculus aimed at E/M applications.

[Anonymous No.5776708]

>>5776678
datass

[OP No.5776719]

>>5776707
Im familiar with the math techniques, but Im having trouble finding a method to determine the distance at which the B field begins to effect others.

[Anonymous No.5776723]

>>5776719
Ah, misread. I apologize.

[OP No.5776725]

>>5776723
np, and thanks for the book refferal.

[Anonymous No.5776738]

I'm not sure I understand what you are trying to calculate. Could you explain?

[OP No.5776746]

>>5776738
something like

given an electromagnet and associated voltage amps solenoid loops etc, find the dimensions of the magnetic field produced when any given current is conducted through the solenoid.

[Anonymous No.5776759]

An electromagnet with a ferromagnetic core has two regimes: linear and nonlinear.

In the linear regime, the magnetic flux density (B) will rise linearly with the current and the number of turns. The crucial material property here is the permeability of the ferromagnetic material.

The field produced will be a dipole field at reasonable distances from the magnet, and so will fall of as 1/r^3.

[Anonymous No.5776764]

OP, have a read of this
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/solenoid.html#c1

[Anonymous No.5776791]

>>5776678
look up Maxwell's equations, OP. Theres one that describes vector field of a B field.

[Anonymous No.5776855]

>>5776791
second

[Anonymous No.5777203]

>>5776746

Magnetic field is all about the cross-section that the changing B field is going through. For example, a loop of wire that is parallel to the magnetic field right next to a magnetic source (such as a current carrying wire) has no effect, while a loop of wire that is perpendicular to the orientation of the magnetic field has induced emf.

So for your solenoid problem, you would see how your current is changing, find your B field, then find the cross section that that changing b field is going through. A changing magnetic flux induces a voltage.

[Anonymous No.5778287]

bump

[transfer student F No.5778321]

>>5776855
>preparing for the manlet uprising

[Anonymous No.5778346]

>>5778321
heh
>>5776855

>smokescreen device + bullets

[Anonymous No.5778506]

>>5776678
gib sauce!!!

[Anonymous No.5778659]

>>5778506
second, i wanna shooter them pooper.

[Anonymous No.5778671]

cheerleaders are so fucking retarded