So if i use iron it'll be good? It's a DC solenoid.
Pc power supply will be good to power 10A solenoid?
Also, how i can say that my solenoid is really 10 A?
R=V/I ? so i need to calculate how much wire lenght i need to do 2000 turns then use copper resistance to determinate which thin of wire provide me a resistance that with, exemple, 12v i have 10A? It's right?
So with with a high resistance i will never be able to provide 10A? Or not depend of this?
But if my considerations are wrong.
I've found this:http://en.wikipedia.org/wiki/American_wire_gauge
The advices i found say to use more thin wire to have more turns with less solenoid diameter, use less wire lenght, and also the same resistance with less wire.
I've used this calculator:http://www.daycounter.com/Calculators/Magnets/Solenoid-Force-Calculator.phtml
The formula say N*I to have more force. More N mean more cost of wire and bigger solenoid.
If i use a 0.1mm wire it say me 10sec(7 A) 1sec(9 A) 32ms(52 A) so it will be good if i use it with 10A for less than 500ms?
I have a this problem, because i find solenoid theory, but not how ideally apply it to build a good solenoid.