Question

Are there more magnetic field lines inside the bar magnet than outside the magnet? Is the magnetic field stronger inside the bar magnet than the outside the magnet? Explain how these ideas relate: ?

Answer 1

In a bar magnet ,the magnetic field gerates from the moving electrons in the material and making up the magnet. The magnetic field generated by electrons as a current loop and the magnetic field from a single electron is tiny . The over all electrons in a bar magnet combine their fields to form a magnetic field of the bar magnet.

The magnetic field lines are more inside the bar magnet than outside. and the stength is stronger than outside becaue the field lines are very close inside the barmagnet.