Magnetic Field Strength in a Solenoid at t = 1 ms

[vysero]

Homework Statement

What is the magnitude of the magnetic field inside the solenoid at t = 1 ms?

Homework Equations

Not sure

The Attempt at a Solution

Well I would make an attempt but firstly I have a question. What I want to know is the above question simply referring to the emf of the solenoid? Is the emf the same thing as the magnetic field? I cannot seem to find an equation relating magnetic fields and inductors.

 

[axmls]

No, it is asking about the strength of the magnetic field, which is not the same as the emf.

 

[vysero]

No, it is asking about the strength of the magnetic field, which is not the same as the emf.

Right moments after posting this I found an equation for the B of a solenoid. I then found i for the inductor based on the given time and was able to find the stregth of B from that.