Question

on what factor straingth of magnetic field depends on?​

Answer 1

Answer:

The magnetic field within a solenoid depends upon the current and density of turns. The energy density of the magnetic field depends on the strength of the field, squared, and also upon the magnetic permeability of the material it fills. Iron has a much, much larger permeability than a vacuum.

Answer 2

Answer:

Magnetic Field Strength for Electromagnets

Then to summarise, the strength or intensity of a coils magnetic field depends on the following factors. The number of turns of wire within the coil. The amount of current flowing in the coil. The type of core material.