Make an electroMatnetic with formula

[baby_1]

Hello
i want to create an electromagnetic with rounding the wire such as ithttp://education.jlab.org/qa/em_02.jpg"

could you tell me how can i do it with formula?(because i want to calculate voltage , amper, Number of rounding and the material of wire)

 

[gsal]

you need to know the resistance of the wire either on a per-unit-length basis or simply measure the resistance of how much wire you are using. You need an ohm-meter for this.

the relationship between voltage, amperes and resistance is this:

V = IR

V=voltage in volts
I= current in amperes
R = resistance in ohms

If you are planning on using a 1.5V battery, then I = 1.5/R, for example.

 

[baby_1]

Thanks gsal
i know the ohm equation
i want to design a DC electronic magnate such as picture that you see.i need equation of calculation of my purpose.

 

[Drakkith]

I believe the following link has everything you need.
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/solenoid.html#c1

 

[baby_1]

Thanks
could you tell me the relationship between B(magnetic filed) and F(Netwon)? i want to move an 2kg with magnetic force