- #1
Euler2718
- 90
- 3
Homework Statement
A long solenoid has 35 turns/cm. With a current of 4.0A, what is the field strength at the core?
Homework Equations
[tex] \beta = \frac{\mu N I}{2r} [/tex]
The Attempt at a Solution
I have no idea with the radius is; that's the entire problem statement above.