You want to make a solenoid that is 38 cm long with 4300 turns. How much current should you run through the solenoid to produce a magnetic field of .75 T?
B = uoNI
The Attempt at a Solution
I converted 38 cm to m (not sure where to use this number). i used the above equation but got it wrong. I have looked all in my textbook and cant find any other equation to use. help!