Hello. I need some help with this for my physics course.

A long solenoid is constructed in a physics lab. The solenoid is 196.0 cm long and it has 6938 turns of Copper wire. Initially the solenoid is empty, i.e. it is filled with air only. What is the magnetic intensity i.e. the H-field inside the solenoid, when an electric current of 5.14 A flows through the solenoid? Submit Answer Tries 0/12 What is the magnetic field i.e. the B-field inside the solenoid? Submit Answer Tries 0/12 The solenoid is now filled with a ferromagnetic material of susceptibility 791.2. What is the magnetic field (B-field) inside the solenoid now? Submit Answer Tries 0/12 What is the surface current density flowing on the outer surface of the ferromagnetic material? Submit Answer Tries 0/12