Magnetic field due to solenoid?

Test Preparation AP Test Preparation
1

<p>B=UonI</p>

<p>Uo=Uo (constant)
I=current
what does n=?
I know it is derived from ampere's law. Where does this work (inside or outside the solenoid)?</p>

2

<p>i remember learning this in class, but i didn't notice it during my review with the PR book. any1 know if this/inductors/impedence is covered on the Physics B exam?</p>

<p>edit: oh and from what i remember the magnetic field is inside the solenoid</p>

3

<p>solenoids most likely won't be on the test!!</p>

<p>i studied them really hard last year (the nail with the coiled wire thingy, right?) only to be gravely disappointed. good luck=)</p>

4

<p>n = N/L L is length and N is the number of turns</p>

5

<p>^ agreed. n is number of turns per length.
u0nI inside
if solenoid is ideal then B outside is 0</p>