Calculate the solenoid dimension

  • Thread starter mdpai
  • Start date
  • #1
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Hi to all,

I have a problem to share with you guys.

How can I calculate the thickness of my solenoid if I have these values;

Solenoid long : 20cm
magnetic field, B : 5Tesla
Current, I : 20A

Thanks a lot for your help. I appreciate that
 

Answers and Replies

  • #3
6
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5T, yeah I know , it's a lot. is it possible?
 
  • #4
6
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B=μnI this is only valid if the proportion between the thickness and the longeur is huge.
 
  • #5
NoTime
Science Advisor
Homework Helper
1,568
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5T, yeah I know , it's a lot. is it possible?

Since stronger magnets have been built, it's possible.
Within any construction constraints you might have, no idea.
Good luck with that.
 
  • #6
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At which place is regarding to solenoid [tex]B=5\;T[/tex]?

For example,formula for [tex]B[/tex] in center of solenoid is:

[tex]B=\frac{\mu_0NI}{\sqrt{4R^2+l^2}}[/tex]
 
  • #7
6
0
At which place is regarding to solenoid [tex]B=5\;T[/tex]?

For example,formula for [tex]B[/tex] in center of solenoid is:

[tex]B=\frac{\mu_0NI}{\sqrt{4R^2+l^2}}[/tex]

It's in the air at the center of the solenoid.

p/s:
I found a formula

[tex]B=\frac{\mu_0NI}{\sqrt{R^2+l^2}}[/tex]

So now I confuse, it's 4R^2 or R^2?
 
  • #8
62
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You are right,it is error in my book.But still you don`t have [tex]N[/tex] given.:confused:
 
  • #9
6
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the thickness of the solenoid depends on the value of N. So, I dont know if we have to calculate N first or, directly calculate the value of the thickness
 
  • #10
62
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the thickness of the solenoid depends on the value of N.

:confused:

[tex]N[/tex] is number of loops.
 

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