- #1

newton1

- 152

- 0

how we find the equation for the magnetic field ??

who can help....

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- Thread starter newton1
- Start date

- #1

newton1

- 152

- 0

how we find the equation for the magnetic field ??

who can help....

- #2

drag

Science Advisor

- 1,100

- 1

Greetings newton1 !

I suggest you check the links at the "napster"

thread at the top, such basic definitions and

explanations are relativly easy to find.

Live long and prosper.

- #3

how we find the equation for the magnetic field ??

who can help...."

Construct an amperian loop around the windings and along the axis. Hard to describe - easier to draw.

Let the solenoid be

<-----<-----<--B--<-----<-----<--

------------

| |

--------|----------|------------/

------------ /

------>------->-------->---->-/

/

----------------------------/

Then integrate around the loop. It's been years since I've done this stuff so let me know how you do. This should start yoiu off. Keep in mind the number of turns per unit length in the solebnoid and the current in the filiment. I think you may assume that the field inside the solenoid is uniform. The answer should come easy after that.

Pete

- #4

newton1

- 152

- 0

yes...i get it

and thank:)

and thank:)

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