Explain why the magnetic field in solenoid is Greater if the solenoid has an iron core?

he magnetic field is greater because the magnetization of the material is added

Explanation:

The magnetic field in a solenoid is given by the relation

          B₀o = μ₀ n I

where n is the density of turns and I the current

When we put a magnetic material inside solenoid

the magnetic field is

         B = B₀ + μ₀ M

where M is called the magnetization of the material and corresponds to the alignment of the magnetic moments of the atoms with the field, therefore the total field is much greater, it should be noted that the part of Bo increases with the current, but the magnetization has a maximum value.

Consequently the magnetic field is greater because the magnetization of the material is added

i believe the answer is electric potential.

explanation:

the ima (higher than 1m) will be greater than the ima with the height of 1m.