# Magnetic Field: Ampere's Law, magnetic field inside a solenoid

A. Use Ampere's Law to find the general equation for the magnetic field in an infinitely long solenoid.

b. Find the magnetic field inside the solenoid.

https://brainmass.com/physics/amperes-law/magnetic-field-amperes-law-magnetic-field-inside-solenoid-11612

#### Solution Preview

By Ampere's Law:

close integral [B*dl] = muo*total current:

let number of turns/length = n

hence, for length ...

#### Solution Summary

With good explanations and calculations, the problems are solved. The magnetic fields inside a solenoid are given. The Ampere's Law functions are given.

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